A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Ziffern/Numerals

A

A	Adenin (DNA-Base/DNA base)
a...	Atto... (Präfix/prefix): 10-18
AA	Anhydrous Ammonia
AA	Atomic Absorption
AA	Automatic (or: Automated) Attendant [Facility] (Telekommunikation/telecommunication)
AA	Automobile Association (UK)
AAA	Abdominal Aortic Aneurism (Medicine)
AAA	Akademisches Auslandsamt
AAA	American Association of Anatomists
AAA	American Automobile Association
AAA	Aromatic Amino Acid
AAA	Austrian Acoustics Association
AAA	Authentication, Authorization and Accounting (Telekommunikation/telecommunication)
AAAA	Alps-Adria Acoustics Association (seit/since Sept. 2002)
AAAA	Authentication, Authorization, Accounting and Auditing (Telekommunikation/telecommunication)
AAAF	Association Aéronautique et Astronautique de France
AAAI	American Association for Artificial Intelligence
AAAS	American Association for the Advancement of Science
AABBA	Aural Assessment by Means of Binaural Algorithms (international expert group)
AAC	Academic Assistance Council (London, UK, since April 1933; later on: SPSL)
AAC	Advanced Audio Coding
AACG	American Association for Crystal Growth
AAC-LD	Low-Delay Advanced Audio Coding
AACR	American Association for Cancer Research
AAES	American Association of Engineering Societies
AAF	Anterior Auditory Field (im Gehirn/in the brain)
AAG	Aufwendungsausgleichsgesetz
AAI	Austrian Archeological Institute
AAID	American Academy of Implant Dentisty
AAL	Ambient Assisted Living (Fraunhofer-Allianz)
AAL	ATM Adaptation Layer
AALL	American Association of Law Libraries
AAM	Advanced Acoustic Model
AAP	Australian Academic Press
AAPM	American Association of Physicists in Medicine
AAPS	American Association of Pharmaceutical Scientists
AAPPS	Association of Asia Pacific Physical Societies
AAPT	American Association of Physics Teachers
AARD	Advanced Accelerator Research and Development
AARI	([St. Petersburger] Institut für Arktis- und Antarktisforschung)
AARTFAAC	Amsterdam-ASTRON Radio Transients Facility and Analysis Centre
AARV	Arctic Area Research Vessel
AAS	Advanced Automation System
AAS	American Astronautical Society
AAS	American Astronomical Society
AAS	Atomic Absorption Spectrometry, Atom-Absorptions-Spektrometrie
AAS	Australian Acoustical Society
AASCU	American Association of State Colleges and Universities
AASF	Afrikanisch-Asiatische Studentenförderung e.V. (Göttingen)
AASHTO	American Association of State Highway and Transportation Officials
AAT	Anglo-Australian Telescope
AATSR	Advanced Along Track Scanning Radiometer (ENVISAT)
AAU	Association of American Universities
AAUP	American Association of University Professors (or: Presses) (USA)
AAUW	American Association of University Women
AAV	adeno-assoziierte Viren
AAV	[Yakir] Aharonov, [David] Albert, [Lev] Vaidman (novel approach to quantum mechanics, published 1988)
AB	Alberta (Province of Canada)
ABA	American Board of Audiology
ABA	Applied Behavioural Analysis
ABB	Asea Brown Boveri AG (Mannheim, DE)
ABC	Absorbing Boundary Condition (acoustics)
ABC	Atanasoff-Berry Computer (Iowa State College, USA, 1938–1942)
ABDO	Allgemeine Bestimmungen für Diplomprüfungsordnungen
ABE	Amtliche Betriebserlaubnis (Typprüfung Kfz)
ABE	Automated Benthic Explorer
ABET	Accrediting Board of Engineering and Technology (USA)
ABG	Automatiserte biometriegestützte Grenzkontrolle
ABK	Allgemeine berufsqualifizierende Kompetenzen (im Bachelor-Studiengang)
ABL	[Yakir] Aharonov, [Peter] Bergmann, [Joel] Lebovitz (novel approach to quantum mechanics, published 1964)
ABL	Airborne Laser (US Waffe/weapon)
ABM	Advanced Buffer Material
ABM	Agent-Based Model
ABM	Anti-Ballistic Missile
ABMF	Account Balance Management Function (Telekommunikation/telecommunication)
ABPI	Association of the British Pharmaceutical Industry
ABR	Auditory Brainstem Response
ABR	Available Bit Rate
ABRIXAS	A Broad-Band Imaging X-Ray All-Sky Survey (Satellit 1999, aufgegeben/satellite 1999, abandoned)
ABS	Accelerator and Beam Science
ABS	Acrylnitril-Butadien-Styrol
ABS	Alternate Billing Service
ABS	Antiblockiersystem; Anti-Lock Braking System (Kfz/motor vehicle)
ABS	Automatic Block Signaling (Eisenbahntechnik/railway technology)
ABT	Ausschuss für Begutachtertraining (DAR, Normungsarbeit)
ABU	Asia(-Pacific) Broadcasting Union
ABV	Alcohol by Volume
AC	Accelerator Cluster (supercomputing)
AC	Access Controller (Telekommunikation/telecommunication)
AC	Admission Control (Telekommunikation/telecommunication)
AC	Air Conditioning
AC	Alternating Current (Wechselstrom)
AC	Attachment Circuit (Telekommunikation/telecommunication)
AC	Auditory Cortex
ACA	Academic Cooperation Association (europäische Organisation/European organisation)
ACA	Aircraft Carrier Alliance (GB)
ACA	American Crystallographic Association
ACA	Arms Control Association
ACA	Atacama Compact Array
ACACIA	Arid Climate, Adaptation and Cultural Innovation in Africa (SFB 389 der DFG)
ACAM	Aachen Center for Additive Manufacturing
ACAP	Advanced Common Application Platform (Telekommunikation/telecommunication)
ACAP	Automated Content Access Protocol (Urheberrecht/copyright)
A-CAPI	Accessnet®-T-Common Application Programming (Telekommunikation/telecommunication)
AC-APU	Air-Conditioning Auxiliary Power Unit
ACARE	Advisory Council for Aeronautic(s) (or: Aviation) Research (and Innovation) in Europe
A-CBC	Akkreditierungsagentur für die Studiengänge Chemie, Biochemie und Chemieingenieurwesen an Universitäten und Fachhochschulen
ACC	Active (or: Adaptive) Cruise Control (Kfz/motor vehicle)
ACC	Advanced Cruise Control
ACC	Antarctic Circumpolar Current (of the ocean)
ACC	Anterior Cingulate Cortex
ACC	Anticollision Code (Fingerabdruck für Multimedia/Fingerprint for Multimedia)
ACCase	Acetyl-CoA-Carboxylase (Enzym)
ACCES	Airport and Control Center Simulator (DLR)
ACCESS	Alternative Fuel Effects on Contrails and Cruise Emissions (aircraft fuel)
ACCESS	Attenuating Custom Communication Earpiece System (active noise reduction earplug)
ACCESS	Australian Community Climate and Earth System Simulator
ACCP	American College of Clinical Pharmacology
ACCU	Advisory Committee of CERN Users
ACD	Advanced Chemistry Development
ACD	Automatic Call Distribution
ACDA	Arms Control and Disarmament Agency (USA 1962)
A-CDM	Airport Collaborative Decision Making
ACE	Advanced Composition Explorer (NASA)
ACE	Advanced Computing Environment
ACE	Advanced Control Education
ACE	American Council on Exercise
ACE	Angiotensin-Converting Enzyme
ACE	Antenna Coupling Equipment (Telekommunikation/telecommunication)
ACE	Application Creation Environment (Telekommunikation/telecommunication)
ACE	Atmospheric Compensation Experiment (adaptive Optik/adaptive optics)
ACE	Community Action for Cooperation in the Field of Economics (EU)
ACELP	Adaptive Code-Excited Linear Prediction
ACEnet	Atlantic Computational Excellence Network
ACES	Active Control Evaluation for Systems
ACES	Atlantic Coral Ecosystem Study
ACES	Atomic Clock Ensemble in Space
ACES	Optimal Acoustic Equivalent Source Descriptors for Automotive Noise Modelling
ACESA	Advanced Composites with Embedded Sensors and Actuators
ACEX	Arctic Coring Expedition
ACF	Autocorrelation Function
ACI	Adjacent Channel Interference (Telekommunikation/telecommunication)
ACI	American Competitive Initiative
ACIA	Asynchronous Communication Interface Adapter
ACK	Acknowledege(ment) (Datenübertragung/data transfer)
ACL	Access Control List (Telekommunikation/telecommunication)
ACL	Active and Cooperative Learning (Signalverarbeitung/signal processing)
ACL	Agent Communication Languages
ACL	Asynchronous Connectionless Link (Telekommunikation/telecommunication)
ACLR	Adjacent Channel Leakage (Power) Ratio (Telekommunikation/telecommunication)
ACM	Acoustic Current Meter
ACM	Active Control Mount
ACM	Adaptive Coding (and) Modulation
ACM	Association for Computing Machinery
ACMA	Automotive Component Manufacturers Association
ACME	Advanced Cold Molecule Electron Restraint System (air bag)
ACMP	American College of Medical Physics
ACMP	Applied and Computational Mathematics Program (in DARPA)
ACO	Ant Colony Optimization
ACP	Advanced Computing Project (Fermilab, ≈ 1980)
ACP	Adjacent Channel Power (Telekommunikation/telecommunication)
ACP	American Center of (or: for) Physics (College Park, MD, USA)
ACP	American College of Physicians
ACPS	Advection-Dominated Accretion Flow (Astrophysik/astrophysics)
ACQ	Active Quenching Circuitry
ACRC	Advanced Computing Research Centre (University of Bristol, UK)
ACRE	Atmospheric Circulation Reconstruction
ACRIDICON	Aerosol, Cloud, Precipitation and Radiation Interactions and Dynamics of Convective Cloud Systems
ACRL	Adjacent Channel Leakage Power Ratio (Telekommunikation/telecommunication)
ACRL	Association of College & Research Libraries
ACRS	Air Cushion Restraint System
ACRV	Assured Crew Return Vehicle (Raumfahrt/spacecraft)
ACS	Advanced Camera for Surveys (Astrophysik/astrophysics)
ACS	akutes Koronarsyndrom
ACS	American Cancer Society
ACS	American Chemical Society
ACS	Assoziazione Controllo Strutturale (IT)
ACS	Attitude Control System (Raketentechnik/rocket control)
ACS	Automated Characterization Suite (software)
ACSI	American Customer Satisfaction Index
ACSI	Atari Computer System Interface
ACSR	Active Control of Structural Response
ACT	Active Control Technology (Flugzeug/aircraft)
ACT	Adaptive Cell Transfer, adaptiver Zelltransfer
ACT	Advanced Concepts Team (ESA)
ACT	African Centre for Technology Studies
ACT	Antichymotrypsin (Plasmaprotein)
ACT	Atacama Cosmology Telescope
ACT	autologe Chrondrozytentransplantation (körpereigene Knorpelzellen-Transplantation)
ACTA	Anti-Counterfeiting Trade Agreement
ACTA	Atmospheric Cherenkov Telescope Array
ACTD	Advanced Concept Technology Demonstration (USA)
ACTH	Adrenocorticotropes Hormon
ACTS	Advanced Communication Technologies and Services (EC)
ACVB	Aortokoronarer Venen-Bypass (Gefäßchirurgie)
AD	Administration Module
AD	Alzheimer's Disease
AD	Andorra (ISO 3166)
AD	ante dominum
AD	Antiproton Decelerator
AD	Authorized Domain
ADA	Acoustic Distribution Array
ADA	American Disabilities Act
ADAC	Allgemeiner Deutscher Automobilclub
Adaline	Adaptive Linear Element
ADANO	Arbeitsgemeinschaft Deutscher Audiologen und Neurootologen
ADAPT	Accent on Developing Abstract Processes of Thought
ADAS	Advanced Driver Assistance System
ADASIS	Advanced Driver Assistance Systems Interface Specification
ADASIS RP	ADASIS Research Platform
ADAV	Allgemeiner Deutscher Arbeiterverein (seit 1863)
ADBS	Association des professionels de l'information et de la documentation (FR)
ADC	Analog-to-Digital Converter
ADC	Animal Defence Corps (Tierversuchsgegner)
ADC	Antibody-Drug-Conjugate
ADC	Automatic Development Chamber
ADC	Automotive Distance Control
ADCP	Acoustic Doppler Current Profiler (oceanic flow measurement)
ADDRESS	Active Distribution Networks with Full Integration of Demand and Distributed Energy Resources
	(EU project, 25 partners in 11 countries: BE, CH, DE, ES, FI, FR, IT, NL, RO, SE, UK)
ADEA	Age Discrimination in Employment Act (USA)
ADELE	Adiabatischer Druckluftspeicher für die Elektrizitätsversorgung
ADEPT	Advanced Dark Energy Physics Telescope
ADEPT	Antibody Directed Enzyme Prodrug Therapy (Krebstherapie/cancer therapy)
ADF	Allotrope Data Format
ADF	Annular Dark Field (electron detector)
ADFC	Allgemeiner Deutscher Fahrrad Club
ADFLICO	Adaptive Flight Control for Advanced Aircraft Concepts (DLR)
ADHD	Attention Deficit Hyperactivity Disorder (= ADHS)
ADHS	Aufmerksamkeitsdefizit-Hyperaktivitätssyndrom (oder: -störung) (= ADHD)
ADI	Acceptable Daily Intake (Europäische Behörde für Lebensmittelrecht)
ADI	Angular Diffraction Imaging
AdL	Akademie der Landwirtschaftswissenschaften (ehem./former DDR)
ADL	All-Digital Loop (Telekommunikation/telecommunication)
ADLC	Adaptive Liquid-Crystal Lens
ADLIP	All Dome Laser Image Projector (Planetarium/planetarium)
ADM	Add/Drop Multiplexer (Telekommunikation/telecommunication)
ADM	Allotrope Data Model
ADM	Area Dimensional Model (Lärmbewertung/noise rating)
ADM	[Richard] Arnowitt, [Stanley] Deser, [Charles] Misner (gravitational equations)
ADM	Atmospheric Dynamics Mission (planned satellite with Lidar)
ADMIRE	Advanced Data Mining and Integration Research for Europe (at EPCC)
ADMX	Axion Dark Matter Experiment (University of Washington, Seattle, USA)
ADN	Allgemeiner Deutscher Nachrichtendienst (DDR)
ADN	Ammoniumdinitramid (Sprengstoff/explosive)
ADN	Automotive Design Network
ADOCS	Advanced Digital Optical Control System (Flugzeug/aircraft)
ADONIS	Acoustic Daylight Ocean Noise Imaging System
ADONIS	Adaptive Optics Near Infrared System (Teleskop/telescope, ESO, La Silla, Chile)
ADP	Adenosindiphosphat
ADP	Ammoniumdihydrogenphosphat
ADP	Avalanche Photodiode
ADPA	American Defense Preparedness Association
ADPCM	Adaptive Differential Pulse Code Modulation
ADR	Accumulated Doppler Range (Satellitenortungsverfahren/satellite locating)
ADR	Adiabatic Demagnetization Refrigerator
ADR	Automatic Defect Review (for semiconductor wafers)
ADR	Automatic (or: Automated) Dialog Replacement (movie development)
ADRCS	Automatic Data Recording and Control System
AdRIA	Adaptronik – Research, Innovation, Application
ADRIA	Advanced Displays Research Integration Action
ADS	Accelerator Driven System (trans-mutation of nuclear waste)
ADS	Active Denial System (a weapon)
AdS	Anti-de-Sitter (Raum, theoretische Physik)
ADS	Astrophysics Data System (SAO/NASA online)
ADSB	Auto(matic) Dependent Surveillance Broadcast (Flugverkehr/air traffic)
AdS/CFT	Anti–de Sitter/Conformal Field Theory (solid state physics)
ADSL	Asymmetric(al) Digital Subscriber Loop (or: Line)
ADT	Articulated Dump Trucks (off-road vehicles)
ADTF	Automotive Data and Time Triggered Framework (Kfz-Technik)
ADTM	[Fraunhofer-]Arbeitsgruppe für Drahtlose Kommunikations- und Multimediatechnik (Erlangen)
ADTV	Advanced Definition Television
ADUC	Arbeitsgemeinschaft deutscher Universitätsprofessoren für Chemie
ADV	Acoustic Droplet Vaporization
ADV	Arbeitsgemeinschaft Deutscher Verkehrsflughäfen
AdW	Akademie der Wissenschaften (ehem./former DDR)
AE	Acoustic Emission
AE	American English
AE	Application Enabler (Telekommunikation/telecommunication)
AE	Astronomische Einheit (Entfernung Erde–Sonne/distance Earth–Sun = 1.49 × 1011 m)
AE	Vereinigte Arabische Emirate/United Arab Emirates (ISO 3166)
AEB	Automatic Emergency Break
AEC	Architecture/Engineering/Construction (Industrie/industry)
AEC	Atomic Energy Commission (USA)
AECL	Atomic Energy of Canada, Ltd.
AECSFE	Asymmetric Elliptic-Cone-Shaped Fibre Endface (Faseroptik/fiber optics)
AECSM	Asymmetric Elliptic-Cone-Shaped Microlens (Faseroptik/fiber optics)
AED	Automatisierter Externer Defibrillator
AED	Automotive Electronics Department (ARAI, India)
AEE	Office of Environment and Energy (FAA)
AEF	Normenausschuss Einheiten und Formelzeichen
AEG	Allgemeine Elektrizitätsgesellschaft
AEGOS	African-European Georesources Observation System (22 partners in 18 countries:
	BE, BF, CZ, DE, ET, FI, FR, GH, GN, NL, PL, PT, SN, TZ, UG, UK, ZA, ZM)
AEI	Albert-Einstein-Institut (Hannover und Potsdam)
AEI	Automatic Equipment Identification
AEKOS	Australian Ecological Knowledge and Observations System
AEL	Accessible Emission Limit
AEM	Analytical Electron Microscopy
AEM	Area Equivalent Method (Lärmbewertung/noise rating)
AEMT	[Fraunhofer-]Arbeitsgruppe für Elektronische Medientechnologie
AEP	Academic Endorsement Point
AEP	Académie Européenne de Philatélie
AEP	Akustisch evozierte Potentiale, Auditory Evoked Potentials
AEPI	Atmospheric Emissions Photometric Imaging
AER	Astronomy-Education Research
AEROTROP	Impact of Aircraft Emissions on the Heterogeneous Chemistry of the Tropopause Region (DLR research group)
AERTOs	Associated European Research and Technology Organisations
AES	Academic Endorsement System
AES	Advanced Encryption Standard
AES	Application Environment Services
AES	Associate Executive Secretary
AES	Audio Engineering Society
AES	Auger-Elektronen-Spektroskopie / Auger Electron Spectroscopy
AESS	Aerospace and Electronic Systems Society
AEÜ	Archiv für elektrische Übertragung (Zeitschrift)
AEV	All-Electric Vehicle
AEV	FhAZ für Entsorgungs- und Verkehrslogistik (Wildau, Brandenburg)
AEWA	[Afrikanisch-Eurasisches Regionalabkommen zur Erhaltung der Wasservögel]
AF	Afghanistan (ISO 3166)
AF	Application Function (Telekommunikation/telecommunication)
AF	Assured Forwarding (Datenübertragung/data transfer)
AF	Audio Frequency
AFAL	Air Force Astronautics Laboratory
AFAS	Abteilung für Angewandte Systemanalyse (Kernforschungszentrum Karlsruhe)
AFB	Air Force Base (USA)
AFC	Alkali Fuel Cell
AFCRL	Air Force Cambridge Research Laboratories (Cambridge, MA, USA)
AFCS	Automatic Flight Control System
AFD	Anticipatory Failure Determination
AFDX	Avionics Full Duplex Switched Ethernet (Luftfahrttechnik/aircraft technology)
AFE	Analog Front End (Telekommunikation/telecommunication)
AFECT	Acoustical Foundation for Education and Charitable Trust (Indien/India)
AFEX	Ammonia Fiber Expansion (Chemie/chemistry)
AFFDL	Air Force Flight Dynamics Laboratory, Wright Patterson Air Force Base, Ohio, USA
Afis	[French Association for Science Education]
AFIT	Air Force Institute of Technology (Wright-Patterson Air Force Base, Dayton, OH, USA)
AFM	Atomic Force Microscope
AFMS	Advanced Flight Management System (DLR)
AFN	Alliance for Nature (Umweltorganisation)
AFN	Ammonia Fuel Network
AFNM	Arbeitsgemeinschaft Fachdidaktik der Naturwissenschaften und der Mathematik
AFO	Allotrope Foundation Ontology
AFO	Auftragsforschung [und -entwicklung] Ost (BMFT)
AFOB	Asian Federation of Biotechnology
AFOSR	Air Force Office of Scientific Research (USA)
AFOTEC	US Air Force Operational Test and Evaluation Center
AFP	Antifreeze Proteins
AFP	Automated Fibre Placement Technology
AFPAC	Anglo–French Physical Acoustics Conference
AFR	Air-Fuel Ratio (Verbrennungsmotor/internal combustion engine)
AFRL	Air Force Research Laboratory (Wright Patterson Air Force Base, OH, USA)
AFRPL	Air Force Rocket Propulsion Laboratory (Edwards Air Force Base, CA, USA)
AFS	Advanced Freephone Service
AFS	Advanced Frontlighting System (Kfz/motor vehicle)
AFS	Aluminum Foam Sandwich
AFS	American Field Service
AfSIS	Africa Soil Information Service (at CIAT)
AFSPC	Air Force Space Command (Schriever Air Force Base, Colorado, USA)
AFSR	Array-Fed Shaped Reflector (Satellitenantenne/satellite antenna)
AFTEC	Acoustic Fusion Technology Energy Consortium (USA)
AFTN	Aeronautical Fixed Telecommunication Network
AG	Aktiengesellschaft
AG	Antigua and Barbuda (ISO 3166)
AG	Arbeitsgruppe
AG	Array Gain
AG	Astronomische Gesellschaft e.V.
AGARD	Advisory Group for Aeronautical (or: Aerospace) Research and Development, North Atlantic Treaty Organization
AGASA	Akeno Giant Air Shower Array (Japan, zum Nachweis kosmischer Strahlung/detection of cosmic radiation)
AGASP	Arctic Gas and Aerosol Sampling Program
AGB	Allgemeine Geschäftsbedingungen
AGB	Asymptotic Giant Branch (Astronomie/astronomy)
AGB	Automatische Geschwindigkeitsbegrenzung (Kfz/motor vehicle)
AG-BL	Arbeitsgemeinschaft Forschungseinrichtungen Blaue Liste
AGC	Automatic Gain Control
AGC	[Fraunhofer-] Anwendungszentrum für Computergraphik in Chemie und Pharmazie
AGC	Autorail Grande Capacité (Diesel-Zug/Diesel train)
AGCF	Access Gateway Control Function (Telekommunikation/telecommunication)
AGCH	Absolute Grant Channel (Telekommunikation/telecommunication)
AGEE	Arbeitsgruppe Erneuerbare Energien
AGEG	Arbeitsgemeinschaft Europäischer Grenzregionen
AGF	Arbeitsgemeinschaft der Großforschungseinrichtungen
AGIL	Arbeitsgemeinschaft Internet und Linguistik (Göttingen)
AGIS	Advanced Gamma-Ray Imaging (US project)
AGIS	Astrometric Global Iterative Solution (astronomy)
AGK	aktiver galaktischer Kern (Astronomie/astronomy, = AGN)
AGKr	Arbeitsgemeinschaft Kristallographie
AGMA	American Gear Manufacturers Association
AGN	Active Galactic Nucleus (= AGK)
AGNSS	Assisted Global Navigation Satellite System
AGORA	Access to Global Online Research in Agriculture
AGP	Autism Genome Project
A-GPS	Assisted Global Positioning System
AGR	Architectural Gear Ratio (Muskelkontraktion/muscle contraction)
AGRE	Autism Genetic Resource Exchange
AGS	Alternating Gradient Synchrotron
AGTD	Applied Geoscience and Technology Division (of the Pacific Community, SPC)
AGU	American Geophysical Union
AGV	Arbeitgeberverband
AGV	Automatic Guided Vehicle
AGW	Access Gateway (Telekommunikation/telecommunication)
AGWN	Additive Gaussian White Noise, additives Gaußsches weißes Rauschen
AH	Adaptive Hypermedien
A.H.	Anno Hegirae (islamischer Kalender, ab 622 n. Chr.)
AHA	American Heart Association
AHAM	Association of Home Appliance Manufacturers (USA)
AHDI	Atari Hard Disk Interface
AHMD	Advanced Helmet-Mounted Display
AHQP	Archive for the History of Quantum Physics
AHRC	Arts and Humanities Research Council (UK)
AHRF	American Hearing Research Foundation
AHRI	Air-Conditioning, Heating, and Refrigeration Institute
AHRI	Australian Herbicide Resistance Initiative
AHS	American Helicopter Society
AHS	Airborne Hyperspectral Scanner
AHSUM	Adaptable High-Speed Undersea Munition
AHT	Average Hamiltonian Theory (Teilchenphysik/particle physics)
AHU	Air Handling Unit (HVAC)
A&I	Abstracting and Indexing (data bases)
AI	Acoustical Imaging (Conference series)
AI	[IASTED International Conference on] Applied Informatics
AI	Anguilla (ISO 3166)
AI	Articulation Index (Psychoakustik/psychoacoustics)
AI	Artificial Intelligence
AIA	American Institute of Architects
AIA	Associazione Italiana di Acustica
AIA	Atmospheric Imaging Assembly (at SDO, NASA)
AIAA	American Institute of Aeronautics and Astronautics
AIAE	[Spanische Aeroakustische Gesellschaft/Spanish Aeroacoustical Society]
AIC	Akaike's Information Criterion
AICB	Association internationale contre le bruit
AICD	automatische implantierte Cardio-Defibrillatoren
AICES	Aachen Institute for Advanced Study in Computational Engineering Science (DE)
AICH	Acqusition Indicator Channel (Telekommunikation/telecommunication)
AICOS	Assistive Information and Communication Solutions (software, developed at the Fraunhofer-Anwendungszentrum in PT)
AID	Aktiver Informationsdienst (EU)
AIDA	Asteroid Impact Deflection Assessment
AIDA	Attention, Interest, Desire, and Action
AIDAA	Assoziazione Italiana di Aeronautica e Astronautica
AIDC	Automotive Industry Developing Center (Südafrika, mit FhG-Unterstützung/South Africa, supported by the German Fraunhofer-Gesellschaft)
AIDJEX	Arctic Ice Dynamics Joint Experiment
AIDS	Acquired Immune Deficiency Syndrome
AIDS	Almost Ideal Demand System (economy)
AIEE	American Institute of Electrical Engineers
AiF	Arbeitsgemeinschaft industrieller Forschungsvereinigungen ,,Otto von Guericke'' e.V. (Köln)
AIF	[Dateinamenerweiterung: Video-Datei/file name extension: video file]
AIHA	American Industrial Hygiene Association
AIJP	Association Internationale de Philatélie
AILU	Association of Industrial Laser Users (UK)
AIM	Advanced Informatics in Medicine
AIM	Advanced Interface Module (Telekommunikation/telecommunication)
AIM	Antarktisches Isotopenmaximum
AIM	Anwendungsplattform Intelligente Mobilität (Verkehrsforschung)
AIM	Asteroid Impact Mission
AIM	Auditory Image Model (Hörakustik/hearing research)
AIMD	Additive Increase, Multiplicative Decrease (Telekommunikation/telecommunication)
AIM-D	[Verband für] Automatische Identifikation, Datenerfassung und mobile Datenkommunikation
AIML	Astronomical Instrument Markup Language
AIMN	Association of Nuclear Medicine and Molecular Imaging
AIMR	Advanced Institute for Materials Research (Tohoku University, JP)
AIMS	African Institute for Mathematical Sciences (Kapstadt, Südafrika/Cape Town, South Africa)
AIMS	Alliance for IP Media Solutions
AIN	Advanced Intelligent Network
AIP	The American Institute of Physics (gegründet/founded 1931)
AIP	Application Integrity Policy
AIP	Astrophysikalisches Institut Potsdam (DE)
AIPP	American Institute of Physics Publishing
AIQ	Analytical Instrument Qualification
AIR	Automatic Image Refinement (Canon Laserdrucker/laser printer)
AIRS	Atmospheric Infrared Sounder (satellite)
AIRSAR	Airborne Synthetic Aperture Radar
AirSTAR	Airborne Subscale Transport Aircraft Research
AIRTO	Association of Independent Research and Technology Organisations (GB)
AIS	Abbreviated Injury Scale
AIS	Alarm Indication Signal
AIS	[Fraunhofer-] Arbeitsgruppe für Integrierte Schaltungen
AIS	Automatic Identification System, Automatisches Identifikationssystem (Schiffsortung)
AIS	idiopathische Adoleszenten-Skoliose
AIS	[Fraunhofer-] Institut für Autonome Intelligente Systeme (St. Augustin, früher/formerly GMD)
AISA	Airborne Spectral Analyzer
AIS-A	[Fraunhofer-] Arbeitsgruppe für Integrierte Schaltungen, Abteilung Angewandte Elektronik
AIS-B	[Fraunhofer-] Arbeitsgruppe für Integrierte Schaltungen, Abteilung Bauelementetechnologie
AISEC	[Fraunhofer-Institut für] Angewandte und Integrierte Sicherheit (Garching bei München)
AISIS	Automatisierte Informationsgewinnung und Schutz kritischer Infrastruktur im Katastrophenfall
AIST	[National Institute for] Advanced Industrial Science and Technology (Japan)
AIT	Application Information Table (Telekommunikation/telecommunication)
AIT	Asian Institute of Technology
AIT	Astrometric Imaging Telescope
AIT	Austrian Institute of Technology
AITRAM	Advanced Integrated Training in Aeronautics Maintenance
AIUM	American Institute of Ultrasound in Medicine
AIV	Assembly, Integration and Validation
AIZ	Antiimperialistische Zelle
AIZ	Ausschuss für internationale Zusammenarbeit (DAR, Normungsarbeit/standardization)
AJA	Arbeitskreis gemeinnütziger Jugendaustauschorganisationen
AJAX	Asynchronous JavaScript and XML
AJC	American Jewish Committee
AJO	Arecibo Ionospheric Observatory (Puerto Rico)
AJOL	African Journals Online
AK	Alaska (US-Staat/US state)
a.k.a., aka	also known as
Akaflieg	Akademische Fliegergruppe
AKE	Arbeitskreis Energie (DPG)
AKF	Arbeitskreis Festkörperphysik (DPG)
AKO	Arbeitskreis ,,Optionen für die Zukunft'' (DPG)
AKR	Antikorruptionsrichtlinie
AKS	Akademische Software Kooperation
AKW	Atomkraftwerk
AL	Alabama (US-Staat/US state)
AL	Albanien/Albania (ISO 3166)
AL	Artificial Life
AL	Astronautics Laboratory (früher/formerly: AFRPL)
ALA	American Library Association
ALADIN	Algorithm for Learning and Architecture Determination
ALARP	As Low as Reasonably Possible
ALC	Automatic Level Control
ALCC	ASCR Leadership Computing Challenge
ALCF	Argonne Leadership Computing Facility
ALCM	Air-Launched Cruise Missile
ALCOA	Attributable, Contemporaneous, Original, and Accurate (required source data properties)
ALD	Arbeitsring Lärm der DEGA
ALD	Associate Laboratory Director
ALD	Atomic Layer Deposition, Atomlagenabscheidung
ALE	Antarctic Logistics and Expeditions
ALEX	Aerosol LIDAR Experiment
ALF	Auditory Localization Facility (at AFRL)
ALFA	Adaptive Optics with a Laser for Astronomy (Calar Alto, ES, 3.5 m Durchmesser/diameter)
ALFA	alternative faserfreie Schallabsorber
ALFA	América-Latina – Formación Académica (EU)
AL-FEC	Application-Layer Forward Error Correction (Telekommunikation/telecommunication)
ALG	Application Level Gateway (firewall)
ALGOL	Algorithmic Language
ALI	ATM Link Interconnect
ALI	Autofahrer-Leit- und Informationssystem
ALICE	A Large Ion Collision Experiment (LHC, CERN)
ALICE	America Latina Interconectada con Europa
ALIVE	Advanced High Volume Affordable Lightweighting for Future Electric Vehicles (EU project)
ALK	automatisierte Liegenschaftskarte
ALL	Akute lymphatische Leukämie
ALLEA	All European Academies
ALLFlight	Assisted Low Level Flight and Landing on Unprepared Landing Sites
ALM	Application Lifestyle Management
ALM	Archäologisches Landesmuseum (Baden-Württemberg)
ALMA	Atacama Large Millimeter/Submilimeter Array (Radioteleskop/radio telescope, seit/since Feb. 2013 in Chile)
ALMA	Additive Layer Manufacturing for Acoustic Metamaterials
ALMA	Association of Loudspeaker Manufacturing & Acoustics International
ALOP	Active Learning in Optics and Photonics (UNESCO-Programm/program)
ALP	Academic-Led Publishing
ALP	Axion-Like Particle
ALPACA	Advanced Liquid-Mirror Probe for Astrophysics, Cosmology and Asteroids
ALPHA	Absorption Low Plus High Aperture (Laserstrahlaufweitung/laser beam expansion)
ALPHA	Advanced Laboratory Physics Association
ALPHA	Antihydrogen Laser Physics Apparatus (international collaboration)
ALPhA	Aquitaine Lasers, Photonique and Applications (Bordeaux, FR)
ALPS	Any Light Particle Search (experiment)
ALPSP	Association of Learned and Professional Society Publishers
ALS	Advanced Light Source (LBNL)
ALS	Alternative Light Source
ALS	Amyotrophe Lateralsklerose (degenerative Nervenerkrankung/degenerative nervous disease)
ALSEP	Apollo Lunar Surface Experiment Packages (auf dem Mond/on the moon)
ALSM	Airborne Laser Swath Mapping (Geodäsie/geodesy)
ALSYMPCA	Alpharidin in Symptomatic Prostate Cancer
ALU	Arithmetic Logic Unit
AM	Additive Manufacturing (3D printing)
AM	Amplitudenmodulation, Amplitude Modulation
AM	Armenien/Armenia (ISO 3166)
AM	Availability Manager
AMA	Advanced Measurement Approaches
AMA	American Medical Association
A-MAN	ATM Metropolitan Area Network (Telekommunikation/telecommunication)
AMANDA	Antarctic Muon and Neutrino Detector (or: Detection) Array (am Südpol/near the South Pole)
AMASE	Arctic Mars Analog Svalbard Expedition
Amass	Autonomous Maritime Surveillance System (10 partners in 7 countries: CZ, DE, ES, MT, NO, PL, UK)
AMBER	Airshower Microwave Bremsstrahlung Radiometer (astrophysics)
AMBER	Assisted Model Building with Energy Refinement (Computer program)
AMC	Adaptive Modulation and Coding (Telekommunikation/telecommunication)
AMC	Allied Military Currency (in Deutschland nach dem 2. Weltkrieg)
AMCD	Annular Momentum Control Device
AMD	Advanced Micro Devices (Sunnyvale, CA, USA)
AMD	Age Related Macula Degeneration, altersbedingte Makula-Degeneration (Sehschwäche/visual deficiency)
AMDE	Atmospheric Mercury Depletion Event
AME	Actinide Migration Evaluation (Radioaktivität/radioactivity)
AMEL	Active Matrix Electroluminescence (Display)
AMFIS	Aufklärung und Überwachung mit Miniatur-Fluggeräten im Sensorverbund
AMG	Arzneimittelgesetz
AMHS	Automated Material Handling System
AMI	Adolphe Merkle Institute (University of Fribourg, CH)
AMI	Alternate Mark Inversion (Telekommunikation/telecommunication)
AMI	American Megatrends Inc.
AMIGOS	Automated Met-Ice-Geophysics Observatory Systems
AMINA	African Monsoon Multidisciplinary Analysis
AML	Akute myeloische Leukämie
AML	Ambient Intelligence
AMLCD	Active-Matrix Liquid Crystal Display
AMLS	Automated Multilevel Substructuring
AMM	Acoustic Metamaterial
AMM	Automatischer Messmodus
AMMA	Afrikanischer Monsun: Multidisziplinäre Analyse
AMNOR	Adaptive Microphone Array for Noise Reduction
AMO	Atlantische Multidekadische Oszillation
AMOC	Atlantic Meridional Overturning Circulation
AMO(S)	Atomic, Molecular, and Optical (Science)
AMOLED	Active-Matrix Organic Light-Emitting Diode
AMON	Astrophysical Multimessenger Observatory Network
AMOP	Arbeitskreis „Atome, Moleküle, Quantenoptik und Plasmen“ (DPG)
AMOP	Atomic, Molecular, Optical, and Plasma Physics
AMP	Accelerated Massive Parallelism (computer architecture)
AMP	Adenosinmonophosphat
AMP	Antimikrobielles Peptid
AMP	Asymmetric Multi-Processing (Datenverarbeitung/data processing)
AMP	FhAZ für Metallpulvererzeugung (Clausthal)
AMPAC	Advanced Materials Processing and Analysis Center (UCF)
AMPAS	Academy of Motion Picture Arts and Sciences (USA)
AMPD	Atomic and Molecular Physics Division
AMPOA	Amplitude of Arrival (Telekommunikation/telecommunication)
AMPS	Advanced Mobile Phone System (Telekommunikation/telecommunication)
AMPTE	Artificial Magnetospheric Particle Tracer Experiment
AMQP	Advanced Message Queuing Protocol
AMR	Adaptive Mesh Refinement (e.g., for astrophysical modelling)
AMR	Adaptive Multirate (Telekommunikation/telecommunication)
AMR	Alignment-Free Monolithic Resonator
AMR	Anisotropic Magnetoresistance
AMRL	Army Medical Research Laboratory (Wright Field, OH, USA)
AMRO	Angular Magnetoresistance Oscillations
AMROS	Autonomer multisensorieller Roboter für Sicherheitsanwendungen
AMS	Accelerator Mass Spectrometry
AMS	Acute Mountain Sickness, Höhenkrankheit
AMS	Alpha Magnetic Spectrometer (DLR, NASA, ISS, seit Mai/since May 2011)
AMS	American Mathematical Society
AMS	American Meteorological Society
AMS	ATM Main Switch
AMSEC	Advanced Materials Science and Engineering Center (Western Washington University, Bellingham, WA, USA)
AMST	Association for Maximum Service Television, Inc. (USA)
AMT	Auditory Modeling Toolbox
AMT	Automated Mechanical Transmission (Kfz-Schaltgetriebe/automobile gear)
AMV	Acoustics Music & Video (ASA Students' Competition)
AMVER	Atlantic Merchant Vessel Emercency Reporting System
AN	Access Node (Rechnernetz/computer network)
AN	Auditory Nerve
AN	Niederländische Antillen/Netherlands Antilles (ISO 3166)
ANAE	Académie Nationale de l'Air et de l'Espace (FR)
ANAE	Atlas of North American English
ANB	American National Biography
ANC	Active Noise Control
ANC	Antenna Networks (Telekommunikation/telecommunication)
ANCF	Active Noise Control Fan (NASA Lewis Research Center, Cleveland, OH, USA)
ANCHORS	UAV-Assisted Ad-Hoc Networks for Crisis Management and Hostile Environment Sensing
	(German-French cooperation project)
ANCOVA	Analysis of Covariance
ANDES	Agua Negra Deep Experiment Site (Australia)
ANDF	Architecture-Neutral Distribution Format
ANDS	Australian National Data Service
ANEC	European Association for the Coordination of Consumer Representation in Standardization
ANF	Atomic Nanofabrication
ANFIS	Adaptive Network-Based Fuzzy Inference System
ANFO	Ammonium Nitrate plus Fuel Oil (Sprengstoff/explosive)
ANGIS	Australian National Genomic Information Service
ANI	Automatic Number Identification (Datennetz/data network)
AnIML	Analytical Information Markup Language
ANITA	Antarctic Impuls(iv)e Transient Array (or: Antenna) (neutrino detector)
ANKA	Angströmquelle Karlsruhe (DE)
ANL	Argonne National Laboratory (University of Chicago, IL, USA)
ANN	Artificial Neural Network
ANOVA	Analysis of Variance (statistischer Test/statistical test)
ANP	Active Noise Profiling
ANPR	Automatic Number Plate Recognition
ANR	Agence Nationale de la Recherche (FR, seit/since 2005)
ANRU	Antenna Receiver for UMTS (Telekommunikation/telecommunication)
ANS	Advanced Neutron Source (Oak Ridge)
ANS	American Nuclear Society
ANS	Approximate Number System
ANSI	American National Standards Institute
AnSiM	Anschluss-Sicherungs-Management (Verkehrstechnik/traffic control)
ANSSI	Agence Nationale de la Securité des Systèmes d'Information
ANT	ADSL Network Termination (Telekommunikation/telecommunication)
ANTARES	Astronomy with a Neutrino Telescope and Abyss Environmental Research (Project) (in the Mediterranian, near Toulon, FR)
ANU	Australian National University (Canberra)
ANVC	Active Noise and Vibration Control
ANX	American Network Exchange
ANZRC	Australian and New Zealand Standard Research Classification
AO	Acousto-Optic (Sensor, Aktor/sensor, actuator)
AO	Adaptive Optics
A/O	All Optical (optische Telekommunikation/optical telecommunication)
AO	Angola (ISO 3166)
AO	Announcement of Opportunity
AO	Arctic Oscillation (atmosphärische Oszillation/atmospheric circulation)
AOA	Angle of Arrival (Telekommunikation/telecommunication)
AOC	Advanced Operational Capability
AOCS	Altitude (or: Attitude) (and) Orbit Control (Sub)system
AOD	Acousto-Optical Deflector, Akusto-optischer Deflektor
AOD	Aerosol Optical Depth
AODI	Always On/Dynamic ISDN
AOF	Authority on the Fly
AOI	Automatic (or: Automated) Optical Inspection
AOIA	Arizona Optics Industry Association (USA)
AOL	America Online (Internet Provider)
AOLS	All-Optical Label Swapping (optische Telekommunikation/optical telecommunication)
AON	All Optical Network (optische Telekommunikation/optical telecommunication)
AOP	Advanced Oxidation Process
AOP	Apparent Optical Properties (of water)
AOP	Aspect-Oriented Programming
AOSIS	African Online Scientific Information Systems
AOSS	Atmospheric, Oceanic and Space Sciences (Department, University of Michigan, USA)
AOT	Accelerator and Operations Technology
AOTF	Acousto-Optic Tunable Filter
AOV	Angle-of-View (Flüssigkristall-Bildschirm/liquid crystal display)
AOWC	All-Optical Wavelength Converter (optische Telekommunikation/optical telecommunication)
AP	Access Point (Telekommunikation/telecommunication)
AP	Alternating Projection (Algorithmus/algorithm)
AP	Anthropisches Prinzip
AP	Artificial Photosynthesis
AP	Associated Press
APA	Administrative Procedure Act (Congress, USA)
APA	Altair Partner Alliance
APA	American Psychological Association
APA	Amplified Piezoelectric Actuator (Technology)
APA	Automatic Pre-Emphasis Adjustment (optische Telekommunikation/optical telecommunication)
APAC	Asia Pacific (Region)
APAM	Applied Physics and Applied Mathematics
APC	Accelerator Physics Center (Fermilab)
APC	Adaptive Predictive Coding
APC	Advanced Process Control
APC	Article Processing Charge (for publishing)
APC	Auto Power Control (Photodiode)
APCI	Atmospheric Pressure Chemical Ionisation
APCM	Adaptive Pulse Code Modulation
AP-CVD	Atmospheric Pressure CVD
APD	Avalanche Photodiode (or: Photo Detector)
APE	Academic Publishing in Europe (Conference Series)
APE	Acoustic Perturbation Equation
APE	Automatic (Program) Production Engine
APEC	Applied Power Electronics Conference [and Exposition]
APEC	Asia Pacific Economic Cooperation (asiatischer Handelsblock)
APEX	Atacama Pathfinder Experiment (Chile, Astrophysik/astrophysics)
APG	Alkylpolyglycosid
APH	[Institut für] Angewandte Physik (am KIT)
APhA	American Pharmacists Association
APHIS	Animal and Plant Health Inspection Service
APHV	Allgemeiner Postwertzeichen-Händlerverband (seit 8.3.1949/since March 8, 1949)
API	Active Pharmaceutical Ingredient
API	Application Program(ming) Interface
APIAN	Advanced Propulsion Integration Aerodynamics and Noise (EU Forschungsprojekt/research project)
APL	Applied Physics Laboratory (Johns Hopkins University, MD, USA)
APL	Applied Physics Letters (Journal)
APM	Advanced Protein Modelling
APM	Aktionskreis Deutsche Wirtschaft gegen Produkt- und Markenpiraterie
APM	Attached Pressurized Module (Raumfahrt/spacecraft)
APM	Automated People Mover (Eisenbahntechnik/railway technology)
APN	Access Point Name (Telekommunikation/telecommunication)
APN	Allotrope Foundation Network
APNEE	Air Pollution Network for Early Warning and Information Exchange (EU Projekt/project)
APO	Arbeitsplatzorientierte Weiterbildung
APO	außerparlamentarische Opposition
APOC	Airport Operation Center
APOD	Astronomy Picture of the Day
APOLT	APON Line Termination
APON	Asynchronous Transfer Mode Passive Optical Network
APONT	APON Network Termination
APP	Accelerated Parallel Processing
APP	Amyloid Precursor Protein
APP	Anwendungszentrum für Plasma und Photonik (HAWK, Göttingen)
APPA	Atomic, Plasma Physics, and Applications
APPLAUS	Auszeichnung der Programmplanung unabhängiger Spielstätten (deutscher Kulturpreis)
APR	Acoustic Pulse Reflectometry
APROSYS	Advanced Protective Systems (Autotechnik/automobile technology)
APRS	Advanced Plasma Reactive Sputtering (optische Beschichtung/optical coating)
APS	Active Pixel Sensors (Bildwandler/image converter)
APS	Advanced Photon Source (Argonne National Laboratory, Illinois, USA)
APS	Air Traffic Planning System (DLR)
APS	The American Physical Society
APS	American Physiological Society
APSR	Association for the Promotion of Sciences and Research (FR)
APSU	Austin Peay State University (Clarksville, TN, USA)
APT	Advanced Processor Technologies Research Group (HPC)
APT	Apartment (US Mail)
APT	Asia Pacific Telecommunity
APT	Atom Probe Tomography
APTA	American Public Transportation Association
APTL	Aerosol and Particle Technology Laboratory
APTP	Asia-Pacific Technology Program
APU	Angular Processing Unit
APU	Auxiliary Power Unit
APUS	Auspicious High-Performance Ultrafast Lase System
APV	Agrarphotovoltaik
APVC	Asia Pacific Vibration Conference
APWG	Anti-Phishing Working Group
APXS	Alpha-Proton-Röntgenstrahlenspektrometer
AQ	Antarktis/Antarctica (ISO 3166)
AQA	Aqua Quality Austria
AQM	Active Queue Management (Datenübertragung/data transfer)
AQS	Air Quality System (für Autos/for cars)
AQS	Automotive Quality Saar (Fraunhofer-Innovationscluster, Saarbrücken, DE)
AR	Antireflection (optische Beschichtung/optical coating)
AR	Argentinien/Argentina (ISO 3166)
AR	Arkansas (US-Staat/US state)
AR	Assessment Report (of the International Panel on Climate Change)
AR	Augmented Reality
AR	Autoregressive (filter)
ARA	Ausfall-Raten-Analyse
ARAC	African Aquacultural Center (Port Hartcourt, Nigeria)
ARAGO	Advanced Robotic Agile Observatory (Astrophysik/astrophysics)
ARAI	Automotive Research Association of India
ARB	Angiostin-Rezeptor-Blocker (Herzmedikament)
ARB	Arbitrary Waveform (Generator)
ARB	Architecture Review Board (computer science)
ARB	Auxiliary Reference Burst
ARC	Aeroacoustic Research Complex (at AFRL)
ARC	Affordable, Robust, Compact
ARC	Angle-Resolved Coherent (Wave Mixing)
ARC	Antireflection Coating (von Laserspiegeln/of laser mirrors)
ARC	Application Research Center (Canton, MI, USA, bei Detroit)
ARC	[Dateinamenerweiterung: Archivdatei mit komprimierten Inhalten/file name extension: compressed archive file]
ARC	Audio Return Channel (Telekommunikation/telecommunication)
ARC	Australian Research Council
ARCUS	Arctic Research Consortium of the U.S.
ARD	Arbeitsgemeinschaft der Rundfunkanstalten Deutschlands
ARDEC	Army Research, Development and Engineering Center (USA)
ARDU	Aircraft Research and Development Unit (AU)
ARE	Antioxidans-Response-Element (auf DNA)
ARED	Advanced Resistive Exercise Device (power training for astronauts)
AREMA	American Railway Engineering and Maintainance of Way Association
ARENA	Active Research Environment for the Next Generation of Automobiles
ARES	Actively Reacting Flexible Structure (DLR)
ARES	Ausbau regnerativer Energiesysteme (DLR)
Arevir	Analyse von Resistenzmutationen bei Viren
ARFCN	Absolute Radio Frequency Channel Number (Mobilfunk/mobile radio)
ARFI	Acoustic Radiation Force Impulse (Imaging)
ARGOS	Advanced Research and Global Observation Satellite
ARGOS	Airborne Wide Area High Altitude Monitoring System (DLR project)
ARI	Applied Research Institute (University of Illinois at Urbana-Champaign, USA)
ARI	Autofahrer-Rundfunk-Informationssystem
ARIB	Association of Radio Industries and Businesses (Japan)
ARIEL	Advanced Rare Isotope Laboratory (at TRIUMF)
ARIMA	Autoregressive Integrated Moving Average (Modelling)
ARIS	Aggregate Route-Based IP Switching (Telekommunikation/telecommunication)
ARIS	Augmented Reality Image Synthesis
ARkStorm	Atmospheric River kilo Storm
ARL	Air Resources Laboratory (at NCEP)
ARL	Akademie für Raumforschung und Landesplanung (Hannover)
ARL	Applied Research Laboratory (Pennstate, USA)
ARL	Army Research Laboratory (Adelphi, MD, USA)
ARL	Association of Research Libraries (USA)
ARLO	Acoustic Research Letters Online (JASA)
ARM	Advanced RISC Machine (EU supercomputer project)
ARMA	Advanced Robotics and Mechanism Laboratory (Columbia University, USA)
ARMA	Association of Research Managers and Administrators
ARMA	Autoregressive Moving Average (filter)
ARMAX	ARMA Process with Auxiliary Input
ARMCI	Aggregate Remote Memory Copy Interface (software)
ARMD	Age-Related Macular Degeneration
ARO	Army Research Office (USA)
ARP	Address Resolution Protocol (Telekommunikation/telecommunication)
ARPA	Advanced Research Projects Administration (or: Agency) (USA)
ARPA	Agenzia Regionale per la Protezione dell'Ambiente (Milano, IT)
ARPA-E	ARPA-Energy
ARPANET	ARPA Network (predecessor of the Internet)
ARPES	Angle-Resolved Photoemission Spectroscopy
ARPHA	Authoring, Reviewing, Publishing, Hosting and Archiving
ARPU	Average (or: Annual) Revenue per User (Telekommunikation/telecommunication)
ARQ	Automatic Repeat Request (Datenübertragung/data transmission)
ARRA	American Recovery and Reinvestment Act
ARRIVAL	Algorithm for Robust and Online Railway Optimization: Improving the Validity and Reliability of Large Scale Systems (EU Project)
ARRIVE	Aspirin to Reduce Risk of Initial Vascular Events (Bayer-Studie)
ARRV	Arctic Region Research Vessel
ARS	Agricultural Research Service (USA)
ART	Advanced Rotorcraft Transmission
ART	Allgemeine Relativitätstheorie
ART	Auditory Research Team
ARTA	Ariane 5 Research and Technology Accompaniment (ESA)
ARTEMIS	Advanced Relay and Technology Mission (ESA)
ARTEMIS	Antenna Arrays for Terahertz Material Identification and Security Applications (research project)
ARTEMIS	Automatic Retrieval of Text from Europe's Multinational Information Service
ARTIS	Autonomous Rotorcraft Testbed for Intelligent Systems (DLR)
ARTS	Automotive Radar Target Simulator
ARV	Allgemeiner Rettungsverband
ARV	Antiretroviral Drugs
ARW	Advanced Research Weather Research and Forecasting Model
AS	Acoustic Segmentation (Sprachverarbeitung/speech processing)
AS	Alarm Surveillance (Telekommunikation/telecommunication)
AS	American Samoa (ISO 3166, US Mail)
AS	Application Server (Telekommunikation/telecommunication)
AS	Autonomous System
AS	Availability Server
ASA	The Acoustical Society of America
ASA	Air Services Australia
ASA	Alabama Supercomputer Authority
ASA	American Standards Association
ASA	Association of Subscription Agents and Intermediaries
ASA	Auditory Scene Analysis
ASAC	Active Structural Acoustic Control
ASACOS	Acoustical Society of America Committee on Standards
ASAL	Agence Spatiale Algérienne
ASAM	Advanced Services Access Manager (Telekommunikation/telecommunication)
ASAM	Association for Standardization of Automation and Measuring Systems
ASAM	ATM Subscriber Access Multiplexer (Telekommunikation/telecommunication)
ASANCA	Advanced Study for Active Noise Control in Aircraft (CEC)
ASAP	Advanced Sensor Application Program
ASAP	Advanced Systems Analysis Program
ASAP	Alarm Severity Assignment Profile
ASAP	as soon as possible
ASAP	[IEEE International Conference on] Application-Specific Systems, Architectures and Processes
ASAR	Advanced Synthetic Aperture Radar
ASAS	After School All Stars
ASAS-SN	All-Sky Automated Survey for Supernovae
ASAT	Antisatellite (Weapon)
ASC	Academic Search Complete (Full text data base)
ASC	Accredited Standards Committee
ASC	Acoustical Society of China
ASC	Aeroacoustics Specialists' Committee (in CEAS)
ASC	American Society for Composites (seit/since 1985)
ASC	American Superconductor Corporation
ASCA	Advanced Satellite for Cosmology and Astrophysics (Japan 1993)
ASCAT	Association des Emetteurs de Catalogues de Timbre Poste
ASCB	American Society for Cell Biology
ASCE	American Society of Civil Engineers
ASCI	Accelerated Strategic Computing Initiative (DoE, USA)
ASCII	American Standard Code for Information Interchange
ASCO	American Society of Clinical Oncology
ASCPT	American Society for Clinical Pharmacology and Therapeutics
ASCR	Advanced Scientific Computing Research (DOE program)
ASCS	Automatic Shift Control System (Kfz-Schaltgetriebe/automobile gear)
ASD	Autism Spectrum Disorder
ASD	Accelerated Scientific Discovery (project at CISL)
ASDEX	Axial-Symmetric Divertor Experiment (Fusionsreaktortechnik/fusion reactor technology, Garching, DE)
ASDIC	Anti-Submarine Detection Submarine Committee
ASDL	Asynchronous Digital Subscriber Line
ASDSP	Application Specific Digital Signal Processor
ASE	Amplified Spontaneous Emission (Laser)
ASE	Amplified Stimulated Emission (Laser)
ASE	Association of Space Explorers
ASE	ATM Switching Element
ASE	→ ESA
ASEA	Analytical Statistical Energy Analysis
ASEAN	Association of Southeast Asian Nations
ASEE	American Society of Engineering Education (or: Educators)
ASEM	[asiatisch-europäisches Gipfeltreffen/Asian-European summit]
ASEPS-O	Astronomical Studies of Extrasolar Planetary Systems (Mount Palomar, CA, USA)
ASESMA	African School on Electronic Structure Methods and Applications
ASET	Applied Science and Environmental Technology (International Conference series)
ASEW	Arbeitsgemeinschaft für sparsame Energie- und Wasserverwendung
ASF	Additional Secondary Factors (LORAN-C corrections)
ASFB	Acoustical Society Foundation Board (USA)
ASFF	Acoustical Society Foundation Fund (USA)
ASG	Advanced Study Group
ASG	Array Signal Gain
ASG	Asymptotisch sichere Gravitation
ASH	Automated Storage and Handling (Forschungsroboter, Bayer AG)
ASHA	American Speech-Language-Hearing Association
ASHG	American Society of Human Genetics
ASHRAE	American Society of Heating, Refrigerating, and Air Conditioning Engineers
ASI	Agenza Spaziale Italiane
ASI	Amorph-Silizium-Glasmodule (Photovoltaik/photovoltaics)
ASI	Archeological Survey of India
ASI	Asynchronous Serial Interface (Telekommunikation/telecommunication)
ASI	Australian Solar Institute
ASIAA	Academica Sinica Institute of Astronomy and Astrophysics (Taipei, TW)
AsianJLS	Asian Journal of Law and Society
ASIC	Acid-Sensitive Ion Channel
ASIC	Anwender-(Anwendungs-)spezifischer IC, Application-Specific Integrated Circuit
ASIIN	Akkreditierungsagentur für Studiengänge der Ingenieurwissenschaften, der Informatik, der Naturwissenschaften und der Mathematik
ASIL	Automotive Safety Integrity Level
ASIM	Arbeitsgemeinschaft Simulation in der Gesellschaft für Informatik
ASIP	Application Specific Set Information-Set Processor (Computer)
ASITF	Advanced Systems Integration Test Facility (aircraft development, Honda, JP)
ASJ	Acoustical Society of Japan
ASK	Akademische Software Kooperation (Universität Karlsruhe)
ASK	Amplitude Shift Keying (Digitales Modulationsverfahren/digital modulation)
ASKAP	Australian Square Kilometre Array Pathfinder
ASL	Airbus Safran Launcher
ASL	American Sign Language (Taubstummen-Gebärdensprache/of deaf-mutes)
ASM	Automotive Simulation Model
ASME	American Society of Mechanical Engineers
A-SMGCS	Advanced Surface Movement Guidance and Control System (Flughafen-Bodenverkehr/airport ground traffic)
ASMP	Australian Species Management Program (für vom Aussterben bedrohte Tiere/for animals threatened by extinction)
ASMW	Amt für Standardisierung, Messwesen und Warenprüfung (ehem./former DDR)
ASN	American Society of Neurochemistry
ASN	ATM Switching Network
ASNA	Airport Safety and Noise Act (USA 1979)
ASNE	American Society of Naval Engineers
ASNT	American Society for Nondestructive Testing
ASN.1	Abstract Syntax Notation 1
ASOM	Adaptive Scanning Optical Microscope
ASON	Automatical(ly) Switched Optical Network (optische Telekommunikation/optical telecommunication)
ASP	Adaptive Signal Processing
ASP	Advanced Spectroscopic Portal (Strahlungsnachweis/radiation detection)
ASP	Application Service Provider (Telekommunikation/telecommunication)
ASP	Arbeitsschwerpunkt
ASP	Astronomical Society Pacific
ASP	Average Selling Price
ASPEC	Audio Spectral Perceptual Entropic Coding
ASPEN	Adaptive Sample Picture Encapsulation
ASPERA	Astroparticle European Research Area (EU Project in Astrophysics)
ASPO	Association for the Study of Peak Oil & Gas
ASQ	Acoustic Source Quantification (Lärmschutz/noise protection)
ASQC	American Society for Quality Control
ASR	Antischlupfregelung (Kfz/automobile)
ASR	Automatic (or: Advanced) Speech Recognition
ASRC	Advanced Science and Research Center (CUNY)
ASREN	Arab Scientific Research and Education Network
ASRG	Advanced Stirling Radioisotope Generator
ASS	Acetylsalicylsäure
ASSC	Association for the Scientific Study of Conciousness
ASSET	Assessing Sensitivity to Transport (EC Project)
ASSI	Akkreditierungsagentur für Studiengänge der Ingenieurwissenschaften und der Informatik
ASSID	[Fraunhofer-Zentrum] All Silicon System Integration Dresden (im IZM)
ASSIST	Alliance for Solid-State Illumination Systems and Technologies
ASSIST	Assessing the Social and Economic Impacts of Past and Future Sustainable Transport (FhG)
ASSP	Acoustics, Speech, and Signal Processing (in IEEE)
ASSP	Application Specific Standard Product
Ast	Anrufsammeltaxi
AST	FhAZ für Angewandte Systemtechnik (Ilmenau, Thüringen)
AST	Automatic Spectroscopic Telescope
ASTA	Advanced Superconducting Test Accelerator (Fermilab)
AStA	Allgemeiner Studentenausschuss
ASTAP	Asia-Pacific Telecommunity Standardization Program
ASTAR	Arctic Study of Tropospheric Aerosol [Clouds] and Radiation
A*STAR	Agency for Science, Technology, and Research (Singapore, since 1991)
ASTE	Atacama Submillimeter Telescope Experiment (Infrarotastronomie/infrared astronomy)
ASTEM	Austrian Scanning Transmission Electron Microscope (Graz, AT, 2011)
ASTER	Advanced Spaceborne Thermal Emission and Reflection Radiometer (Erd-Fernerkundung/remote reconnaissance)
ASTIA	Armed Services Technical Informations Agency (USA)
ASTM	American Society of Testing Materials
ASTONISH	Atomic-Scale Studies of the Nature of and Conditions for Inducing Superconductivity at High-Temperature (ERC program, University of Hamburg, DE)
ASTREX	Advanced Space Structure Research Experiments
ASTRID	Aarhus Storage Ring, Denmark
ASTROSE	Autarker Strom-Sensor
ASTV	Aeroassisted Space Transfer Vehicle (Raumfahrt/spacecraft)
ASU	Abgas-Sonder-Untersuchung
ASU	Arizona State University (Tempe, AZ, USA)
ASU	ATM Service Unit
ASURA	Advanced Speech Understanding and Rendering System of ATR (Japan)
ASV	Automated Structure Verification (pharmaceutical chemistry)
ASVP	Application Specific Standard Products
ASW	Antisubmarine Warfare
ASWORG	Antisubmarine Warfare Operations Research Group (USA)
AT	Atomic Time (seit/since 1955)
AT	Österreich/Austria (ISO 3166
ATB	Active Twist Blade (Hubschrauber/helicopter)
ATB	Institut für Agrartechnik Bornim (Potsdam-Bornim)
ATC	Abstract Test Case (Telekommunikation/telecommunication)
ATC	Adiabatic Toroidal Compressor (Fusionsreaktortechnik/fusion reactor technology, PPPL)
ATC	Air Traffic Control (Luftverkehrssteuerung)
ATC	[European] Altair Technology Conference
ATC	American Television and Communications Corporation
ATC	ATM Transfer Capabilities (Telekommunikation/telecommunication)
ATC	Automatic Train Control (Eisenbahntechnik/railway technology)
ATDMA	Advanced TDMA
ATE	Application Test Environment (Telekommunikation/telecommunication)
ATE	Automatic (or: Automated) Test Equipment
ATF	Accelerator Test Facility
ATF	Acoustic Transfer Function
ATF	Advanced Tactical Fighter (USA, Luftwaffe/Air Force)
ATHENA	Advanced Telescope for High-Energy Astrophysics
ATI	Acoustics Today Interns
ATI	Above-Threshold Ionization
ATI	Any Time Interrogation (Telekommunikation/telecommunication)
ATI	Automated Target Identification
ATI	Automatic Telephony Interpretation (CAIR, Korea)
ATIC	Advanced Thin Ionization Calorimeter
ATIP	Asian Technology Information Program (US organization)
ATIS	Airport Terminal (or: Travel) Information Service
ATIS	Alliance for Telecommunications Industry Solutions (North America)
ATKIS	Amtliches Topographisch-Kartographisches Informations-System
ATL	[Fraunhofer-] Arbeitsgruppe für Technologien der Logistik-Dienstleistungswirtschaft (Nürnberg)
ATLAS	A Toroidal LHC Apparatus (LHC, CERN)
ATLAS	Argonne Tandem-Linac Accelerator System (Argonne National Laboratory, near Chicago, IL, USA)
ATLAS	Atmospheric Laboratory for Applications and Science
ATM	Air Traffic Management
ATM	Asynchronous Transfer Mode (Datennetz/data network)
ATM	Ataxia Telangiectasia Mutated (Enzym)
ATM	Atmospheric Transport Modeling (CTBT)
ATM	Attached Pressurized Module (Raumfahrt/spacecraft)
ATM	Automated Teller Machine (Bankwesen/banking)
ATMF	ATM Forum
ATMF	ATM user connected via optical Fiber
ATMOS	Air Traffic Management and Operations Simulator (DLR)
ATMP	Advanced Therapy Medicinal Product
ATMT	[Fraunhofer-] Arbeitsgruppe für Telekommunikation und Multimediatechik
ATO	Automatic Train Operation (Eisenbahntechnik/railway technology)
ATOC	Acoustic Thermometry of Ocean Climate
ATON	Autonomous Terrain-Based Optical Navigation
ATP	Adenosintriphosphat
ATP	Advanced Technology Program (USA, Department of Commerce)
ATP	Advanced Turbo-Prop (Flugzeug/aircraft)
ATP	Automatic Train Protection (Eisenbahntechnik/railway technology)
ATPC	Automatic Transmit Power Control (Telekommunikation/telecommunication)
ATPESC	Argonne Training Program on Extreme Scale Computing
ATR	Attenuated Total Reflection (Chemie: Analyse-Verfahren/chemical analysis)
ATR	Automatic (or: Automated) Target Recognition (Telekommunikation, Wasserschall/telecommunication, underwater sound)
ATRA	Advanced Technology Research Aircraft (DLR)
ATRIAS	Assume The Robot Is A Sphere
ATRP	Atom Transfer Radical Polymerization
ATS	Abstract Test Suite (Telekommunikation/telecommunication)
ATS	Advanced Tracking System (for waste material, using GPS – later on Galileo when available)
ATS	American Thoracic Society
ATS	Automated Tuner System
ATS	Automatic Train Supervision (Eisenbahntechnik/railway technology)
ATSC	Advanced Television Systems Committee
ATSE	Antenna Technology Shuttle Experiment (NASA)
ATST	Advanced Technology Solar Telescope (geplant/planned)
ATT	Advanced Transport Telematics
ATTA	Atom Trap Trace Analysis
ATTAS	Advanced Technologies Testing Aircraft System (DLR, bis 27.6.2012/until June 27, 2012)
AT&T	American Telephone and Telegraph Company
ATTC	Advanced Television Test Center, Inc. (USA)
ATTHeS	Advanced Technology Testing Helicopter System (DLR)
atto	10-18 (Vorsible/prefix)
ATTICA	European Assessment of Transport Impacts on Climate Change and Ozone Depletion
ATU	Access Termination Unit (Telekommunikation/telecommunication)
ATU	ADSL Terminal Unit
ATV	All-Terrain Vehicle
ATV	Area tegmentalis ventralis (im Gehirn/in the brain)
ATV	Automatic (or: Automated) Transport (or: Transfer) Vehicle, Automatisches Transfervehikel (Raumfahrt/spacecraft)
AU	African Union
AU	Astronomical Unit (Abstand Erde–Sonne/distance from earth to sun = 1.49 x 1011 m)
AU	Australien/Australia (ISO 3166)
a.u.c.	ab urbe condita (römische Zeitrechnung, ab Gründungsjahr Roms, 753 v. Chr.)
AUC	American University in Cairo (Egypt)
AuC	Authentication Center (Telekommunikation/telecommunication)
AUI	Associated Universities, Inc. (USA)
AURA	Association of Universities for Research in Astronomy (USA)
AUT	Association of University Teachers (GB)
AUTEC	Atlantic Undersea Test(ing) and Evaluation Center (bei/near Andros Island in the Bahamas)
AUTM	Association of University Technology Managers
AutoBAHN	Automated Bandwidth Allocation across Homogeneous Networks (optische Telekommunikation/optical telecommunication)
AUTOSAR	Automotive Open System Architecture
AUV	Autonomous Underwater Vehicle
AV	Audio- und Video-(Anschluss)
AV	Audiovisual (Sprachwahrnehmung/speech perception)
AVA	Aerodynamische Versuchsanstalt (Göttingen, 1907)
AVANTI	Autonome Visuelle Anflug-Navigation und Target Identifikation (DLR-Projekt)
AVB	Allgemeine Vertragsbedingungen
AVC	Advanced Video Coding
AvD	Arzt vom Dienst (Krankenhaus)
AVDP	Audio Video Delivery Platform
AVE	Alta Velocidad Española (Spanish high speed train)
AVE	Avenue (US Mail)
AVES	Air Vehicle Simulator (DLR, Braunschweig, DE)
AvH	Alexander von Humboldt-Stiftung
AVHRR	Advanced Very High Resolution Radiometer (Fernerkundung/remote locating)
AVI	Akkreditierungsverbund für Ingenieurstudiengänge e.V.
AVI	Automatic Vehicle Identification
AVI	[Dateinamenerweiterung: Videodatei/file name extension: video file]
AVIRIS	Airborne Visible/Infrared Imaging Spectrometer
AVISO	Archivage, validation, interprétation des données des satellites océanographiques
AVRCP	Audio Video Remote Control Profile
AVK	FhAZ für Verkehrslogistik und Kommunikationstechnik (Nürnberg)
AVL	Automatic Vehicle Location (Telekommunikation/telecommunication)
AVL	Advanced Visualization Laboratory (at the NCSA center)
A-VLAN	Authenticated VLAN (Telekommunikation/telecommunication)
AVM	Autarke verteilte Mikrosysteme (Computertechnologie/computer technology)
AVO	Astronomical Virtual Observatory (Europe)
AVO	Audio-Visual Object (Telekommunikation/telecommunication)
AVPE	Acoustic Velocity Potential Equation
AVRCP	Audio Video Remote Control Profile
AVS	Adult Verification System
AVS	Advanced Visual Systems
AVS	American Vacuum Society
AVT	[Labor für] Aufbau- und Verbindungstechnik (Fraunhofer IISB)
AVUS	Automobil-Versuchs- und Übungsstrecke (Berlin)
AVV	FhAZ für Verarbeitungsmaschinen und Verpackungstechnik (Dresden)
AW	Aruba (ISO 3166)
AWA	Argonne Wakefield Accelerator
AWC	All-Wheel Control (automotive drive control)
AW-CDM	Adaptive Weighted CDM
AWE	Arbeitsplatz-Wiedergabe-Einheit (digitales Sprachübertragungssystem/digital speech transmission)
AWFORS	Advanced Welding Technologies for Repair and Salvage of High Valued Engine Components
	on Nickel and Titanium Based Alloys (zur Reparatur von Flugzeugtriebwerken/for aircraft engine repair)
AWG	American Wire Gauge
AWG	Arbitrary Waveform Generator
AWG	Array(ed) Waveguide Grating (filter, photonics)
AWGN	Additive (or: Average) White Gaussian Noise
AWI	Alfred-Wegener-Institut für Polar- und Meeresforschung (Bremerhaven)
AWI	Außenwissenschaftsinitiative
AWIATOR	Aircraft Wing with Advanced Technology Operation
AWMA	Automated Working Memory Assessment
AWO	Arbeiterwohlfahrt
AWO	Auftragsforschung-West-Ost (BMFT)
AWOP	All Weather Operations Panel (Allwetter-Flugbetrieb/weather-independent air traffic)
AWRI	Australian Wine Research Institute
AWS	Absolute Wahrnehmbarkeitsschwelle (Psychoakustik)
AWS	Advanced Wireless Spectrum (Telekommunikation/telecommunication)
AWS	Amazon Web Services
AWZ	ausschließliche Wirtschaftszone
AXAF	Advanced X-Ray Astrophysics Facility (Satellite, USA)
AZ	Arizona (US-Staat/US state)
AZ	Aserbeidschan/Azerbaijan (ISO 3166)
Azipod	Azimuthing Electric Podded Propulsion (Schiffsantrieb/ship propulsion)
AZOM	[Fraunhofer-] Anwendungszentrum für Optische Messtechnik und Oberflächentechnologie
AZT	Allianz Zentrum für Technik (Ismaning bei München)
AZT	Azidothymidin (HIV-Medikament)
A2DP	Advanced Audio Distribution Profile
A2LA	American Association for Laboratory Accreditation

B

BA, B.A.	Bachelor of Arts
BA	Berufsakademie
BA	Bosnien und Herzegowina/Bosnia and Herzegovina (ISO 3166)
BA	Bremsassistent (Kfz/motor vehicle)
BA	Bundesagentur für Arbeit
BAAS	British Association for the Advancement of Science
BAB	Bundesarchiv Berlin
BAB	Bundesautobahn
BACODINE	Batse Coordinates Distribution Network (Astrophysik/astrophysics)
BACZ	Betriebsarchiv Carl Zeiss
BAdW	Bayerische Akademie der Wissenschaften
BAe	British Aerospace
BAEF	Belgian American Educational Foundation
BAFA	Bundesamt für Wirtschaft und Ausfuhrkontrolle (DE)
BaFin	Bundesanstalt für Finanzdienstleistungsaufsicht
BAföG	Bundesausbildungsförderungsgesetz
BAFTA	British Academy of Film and Television Arts
BAFU	Bundesamt für Umwelt (Bern, CH)
BAG	Bundesarbeitsgemeinschaft der Leitenden Kliniksärzte für Kinder- und Jugendpsychiatrie
BAGMO	Bundesarbeitsgemeinschaft Motorrad
BAI	Beratender Ausschuss der Industriephysiker (in der DPG)
BAK	[Dateinamenerweiterung: Sicherungskopie/file name extension: backup file]
BAKOM	Bndesamt für Kommunikation (CH)
BALK	Bundesarbeitsgemeinschaft leitender Krankenpflegepersonen e.V.
BAM	Bundesanstalt für Materialforschung und -prüfung (Berlin)
BAME	Bayerische Arbeitsgemeinschaft Mikroelektronik
BAN	Body Area Network
BAO	Baryonic (or: Baryon) Acoustic Oscillation (cosmology)
BAP	Benzo(a)pyren
BAPT	Bundesamt für Post und Telekommunikation (früher/formerly: FTZ, später/later on: RegTP)
BAR	Biologische Arbeitsstoff-Referenz(werte)
BARC	Bay Area Research Center (Microsoft-Forschungszentrum)
BARN	Bayer-Alzheimer Research Network
BAS	Bremsassistent (Kfz)
BAS	British Antarctic Survey
BAS	Broadband Access Server (Telekommunikation/telecommunication)
BASE	Bacterial Adaptation to Space Environment (ESA project)
BASE	Bioinformatics and Systems Engineering (Riken research group, JP)
BASF	Badische Anilin- und Sodafabrik
BASIC	Beginners All Purpose Symbolic Instruction Code
BASL	Building a Smart Laboratory
BAST	Bundesanstalt für Straßenwesen (Bergisch-Gladbach)
BASYS	Baltic Sea System Study
BAT	Bandwidth Allocation Threshold (Datennetz/data network)
BAT	Biologische Arbeitsstofftoleranz(werte)
BAT	Bonquet Association Table
BAT	British Antarctic Territory
BAT	Bundesangestelltentarif
BAT	Burst-Alert Telescope (an Bord von/aboard SWIFT Orbiter)
BAT	[Dateinamenerweiterung: Batchdatei/file name extension: batch file]
BATC	Technical Committee of Biomedical Acoustics (ASA)
BATSE	Burst and Transient Source Experiment (GRO)
B.A.U.M.	Bundesdeutscher Arbeitskreis für umweltbewusstes Management e.V.
BAW	Bulk Acoustic Wave
BAZL	Bundesamt für Zivilluftfahrt (Bern, CH)
BB	Barbados (ISO 3166)
BB	Baseband (Telekommunikation/telecommunication)
BB	Bottom Bounce (sonar ranging)
BB	Brandenburg (Bundesland/German Federal State)
BB	Broadband
BBAE	Breitband-Anschluss-Einheit
BBAW	Berlin-Brandenburgische Akademie der Wissenschaften
BBB	Blood-Brain Border (or: Barrier), Blut-Hirn-Schranke
BBC	British Broadcasting Corporation
BBC	Broadband Coupler (Datennetz/data network)
BBCOR	Bat-Ball Coefficient of Restitution
BBE	Broadband Entertainment
BBI	Base Band to Base Band Interface (Telekommunikation/telecommunication)
BBiG	Berufsbildungsgesetz
BBK	Bundesamt für Bevölkerungsschutz und Katastrophenhilfe
BBMA	Baseband Module Revision A (Telekommunikation/telecommunication)
BBMC	Baseband Module Revision C (Telekommunikation/telecommunication)
BBN	Big Bang Nucleosynthesis (astrophysics)
BBN	Bolt, Beranek & Newman (USA)
BBNS	Big Bang Nucleosynthesis
BBO	Beta-Bariumborat (nichtlinearer Kristall/nonlinear crystal)
BBPPT	Balai Besar Pengujian Perangkat Telekomunikasi (Indonesien)
BBR	Black-Body Radiation
BBRAN	Broadband Remote Access Network (or: Node)
BBRAS	Broadband Remote Access Server
BBS	Behavioral and Brain Science (School and Journal)
BBS	Bulletin Board System (Internet)
BBSO	Big Bear Solar Observatory (Big Bear Lake, CA, USA)
BBW	Bundesverband der Brand- und Wasserschadenbeseitiger e.V.
BC	Before Christ
BC	British Columbia (Province of Canada)
BCA	Burst Cutting Area (Telekommunikation/telecommunication)
B-CAS	Basic System Conditional Access System (Telekommunikation/telecommunication)
BCAST	Broadcast
BCC	Base (Transceiver) Station Color Code (Mobilfunk/mobile radio)
bcc	blind carbon copy (Durchschlag, ohne Nachricht an andere Adressaten)
BCC	Body-Centered Cubic (Gitter/lattice)
BCC	Buffer Congestion Control (Telekommunikation/telecommunication)
BCCH	Broadcast Control Channel (Mobilfunk/mobile radio)
BCCN	Bernstein Center for Computational Neuroscience (Göttingen, DE)
BCD	Binary Coded Decimal
BCE	Before Common Era (= vor Christus/before Christ)
BCG	Bacille Calmette-Guérin (Tbc-Impfstoff)
BCH	Bicentenario de Capital Humano (Chile)
BCH	Bose-Chaudhuri-Hocquenghem (Fehler korrigierender Code/error correcting code)
BCI	Brain-Computer Interface
BCIS	Biodiversity Conservation Information System
BCP	Burst Control Packet
BCR	Biospecimen Core Resource
BCR	Bureau Communautaire de Référence
BCRT	Berlin-Brandenburgisches Zentrum für regenerative Therapien, Berlin-Brandenburg Center for Regenerative Therapies (Stammzellenforschung/stem cell research)
BCRU	British Committee on Radiation Units and Measurement
BCS	[John] Bardeen – [Leon N.] Cooper – [John R.] Schrieffer (Supraleitungstheorie/theory of superconductivity)
BCS	British Computer Society
BCSD	Business Council for Sustainable Development
BCU	Battery Control Unit (Hybridfahrzeug/hybrid vehicle)
BD	Bangladesh (ISO 3166)
BD	Business Division
BDA	Bundesvereinigung der Deutschen Arbeitgeberverbände
BDC	Berlin Document Center
BDEW	Bundesverband der Energie- und Wasserwirtschaft
BDF	Bundesverband Deutscher Fertigbau
BDI	Backward Defect Indication
BDI	Bearing Deviation Indicator (underwater acoustics)
BDI	Belief, Desire, Intent
BDI	Bundesverband der Deutschen Industrie e.V. (Köln)
BDJ	Biodiversity Data Journal
BdKEP	Bundesverband der Kurier-, Express- und Postdienste
BDLI	Bundesverband der Deutschen Luft- und Raumfahrtindustrie
BDNF	Brain-Derived Neurotrophic (or: Nerve) (Growth) Factor (Medizin/medicine)
BDO	Bundesverband der Organtransplantierten
BDP	Biologics Data Platform
BDPh	Bund Deutscher Philatelisten
BDR	Battery Discharge Module (Satellitentechnik/satellite technology)
BDSL	Boundary-Scan-Description Language
BDVD	Bovine Viral Diarrhea Virus
BDZ	Bildungs- und Demonstrationszentrum für dezentrale Abwasserbehandlung e.V. (Leipzig)
BE	Belgien/Belgium (ISO 3166)
BE	Berlin (Bundesland/German Federal State)
BE	Best Effort
BE	Broteinheit (für Diabetiker)
BEAN	Bridging the European and Anatolian Neolithic (research project)
BEC	Backward Error Correction (Datenübertragung/data transmission)
BEC	Bose-Einstein Condensation
BECS	Biomedical Engineering and Computational Science
BEEM	Ballistic Electron Emission Microscopy
BEESAT	Berlin Experimental and Educational Satellite (von TUB-Studenten)
BEF	Best Effort Forwarding (Telekommunikation/telecommunication)
BEH	[Robert] Brout, [François] Englert, [Peter W.] Higgs (elementary particle physics)
BEHGHK	Brout–Englert–Higgs–Guralnik–Hagen–Kibble (elementary particle physics)
BEIR	Biological Effects of Ionizing Radiation
Bellcore	Bell Communications Research
BEM	Big Emerging Market (Welthandel/world trade)
BEM	Boundary Element Method (or: Model)
BEn	Biomasse-Energiekataster
BEO	Biologie, Energie, Ökologie (KFA Jülich, Projektträger)
BEP	Bit Error Probability
BEPC	Beijing Electron Positron Collider
BER	Binary Encoding Rule (ASN.1)
BER	Bit Error Rate (or: Ratio)
BERO	Backup Explicit Route Object (Telekommunikation/telecommunication)
BERR	Business Enterprise and Regulatory Reform (UK Government Department)
BERT	Bit Error Rate Testing
BES	Beijing Spectrometer
BES	Biomedical Engineering Society
BES	BlackBerry Enterprise Server (Computer)
BES	British Ecological Society
BESAC	Basic Energy Sciences Advisory Committee
BeSC	Belfast e-Science Centre (Ireland)
BESSY	Berliner Elektronen-Speicherring für Synchrotronstrahlung
BETHY	Biosphere Energy Transfer Hydrology Model
BEUC	European Consumer Organisation
BEV	Battery Electric Vehicle
BEV	Bundesamt für Eich- und Vermessungswesen (Österreich)
BEXUS	Ballon-Experimente für Universitätsstudenten (seit Okt. 2008, SE)
BF	Burkina Faso (früher/formerly: Obervolta/Upper Volta, ISO 3166)
BfA	Bundesanstalt für Arbeit
BfArM	Bundesinstitut für Arzneimittel und Medizinprodukte (Bonn)
BFD	Bi-Directional Fault (or: Forwarding) Detection
BFD	Bundesfreiwilligendienst (= BuFDi, seit 2011)
bFGF	Basic Fibroblast Growth Factor (basischer Fibroblasten-Wachstumsfaktor)
BFH	Bundesfinanzhof
BFIO	Büro für Führungskräfte zu internationalen Organisationen (Frankfurt/M)
BFL	Back Focal Length (optische Linsen/optical lenses)
BFN	Beam Forming Network (Antenne/antenna)
BfN	Bundesamt für Naturschutz
BFNT	Bernstein Focus Neurotechnology (Göttingen, DE)
BFO	Beat Frequency Oscillator
BFP	Blue Fluorescent Protein
BFPP	Bound-Free Pair Production (particle physics)
BfR	Bundesinstitut für Risikobewertung
BfS	Bundesinstitut für Strahlenschutz
BFY	Beyond the First Year
BG	Border Gateway (Telekommunikation/telecommunication)
BG	Bulgarien/Bulgaria (ISO 3166)
BGA	Ball Grid Array, Kugelgitteranordnung (Chipgehäuse/chip box)
BGAN	Broadband Ground Access Network (Telekommunikation/telecommunication)
BGB	Bürgerliches Gesetzbuch
BGCF	Breakout Gateway Control Function (Telekommunikation/telecommunication)
BGI	Beijing Genomics Institute (Shenzen, CN)
BGM	Betriebliches Gesundheitsmanagement
BGO	Bismuth Germinate (Gammastrahlendetektor/gamma ray detector)
BGO	Burke-Gaffney Observatory (Saint Mary's University, Halifax, CDN)
BGP	Border Gateway Protocol (Telekommunikation/telecommunication)
BGR	Bundesanstalt für Geowissenschaften und Rohstoffe (Hannover)
BGSU	Bowling Green State University (OH, USA)
BGU	Ben-Gurion University (Negev)
BGVV	Bundesanstalt für gesundheitlichen Verbraucherschutz und Veterinärmedizin
BH	Bahrain (ISO 3166)
BH	Buried Heterostructure (Laser)
BHC	Bayer Healthcare
BHCA	Busy Hour Call Attempt (Telekommunikation/telecommunication)
BHFP	Black Hole Finder Probe (Astronomie/astronomy)
BHKW	Blockheizkraftwerk
BHL	Biodiversity Heritage Library
BHSU	Black Hills State University (USA)
BI	Burundi (ISO 3166)
BI	Business Intelligence
BIAS	Bremer Institut für Angewandte Strahltechnik
BIBB	Bundesinstitut für Berufsbildung (Bonn)
BIC	Blind Interference Cancellation (DARP, Telekommunikation/telecommunication)
BIC	Bound State in the Continuum (Festkörperphysik/solid state physics)
BIC	Business Identifier Code
BICC	Bearer Independent Call Control (Telekommunikation/telecommunication)
BICEP	Background Imaging of Cosmic Extragalactic Polarization
BiCI	Bilateral Cochlear Implant
BICI	Broadband Inter-Carrier Interface (Datennetz/data network)
BiCMOS	bipolar CMOS
BIDS	Biological Integrated Detection System
BIE	Boundary Integral Equation
BIEK	Bundesverband Internationaler Express- und Kurierdienste
BIFS	Binary Format for Scenes (digitales Fernsehen/digital TV)
BILD	Binaural Intelligibility Level Difference (Hörakustik/hearing research)
BILL	Beacon Illuminator Laser (US Waffe/weapon)
BIM	Building Information Modelling
BIMR	Brockhouse Institute for Materials Research (McMaster University, Hamilton, ON, CA)
BIMS	Biobank Information Management System
BImSchG	Bundes-Immissionsschutzgesetz
BIOP	Broadcast Inter ORB Protocol (Telekommunikation/telecommunication)
BioPoLiS	Bioproduktions-Labor am IPA in Stuttgart (FhG)
BIOS	Basic Input/Output System
BIOS	Biomedical Optics
BIOT	Broadcast Inter ORB Protocol (Telekommunikation/telecommunication)
BIP	Bruttoinlandsprodukt (Volkswirtschaft, = GDP)
BIPM	Bureau International des Poids et Mesures (Sèvres, Paris)
BIRC	Bio-Imaging Research Center (University of Georgia, Athens, GA, USA)
BIROS	Bi-Spectral Infrared Optical System (Feuerdetektionssatellit)
BIS	Ballistik-Informations-System (in Jagdfernglas integriert)
BIS	Business, Innovation and Skills
B-ISDN	Broadband ISDN
BISG	Book Industry Study Group
BISP	Bio Imaging and Signal Proceessing
BISP TC	Bio Imaging and Signal Proceessing Technical Committee (in IEEE Signal Processing Society, since 2004)
BIT	Binary Digit
B-IT	Bonn–Aachen International Center for Information Technology
BITNET	Because It's Time Network
BITV	Barrierefreie Informationstechnik-Verordnung
BIW	Body in White
BIZ	Biblioteca Italiana Zanichelli
BJ	Benin (früher/formerly: Dahomey, ISO 3166)
BJPT	Bangladesh Journal of Plant Taxonomy
BJTU	Beijing Jiaotong University
BKA	Bundeskriminalamt
BKCI	Book Citation Index
BKG	Bundesamt für Kartographie und Geodäsie
BKJPP	Berufsverband für Kinder- und Jugendpsychiatrie, Psychotherapie und Psychosomatik
BKS	Bohr-Kramers-Slater (-Theorie/theory) (1924)
BL	Blaue Liste (Deutsche Forschungsinstitute/German research institutes)
BLAG	Buffer-Layer Assisted Growth (Festkörperphysik/solid state physics)
BLAST	Balloon-Borne Large Aperture Submillimeter Telescope
BLAST	Bates Large Acceptance Spectrometer Toroid (MIT)
Blazar	Blazing Quasi Stellar Object (astrophysics)
BLC	Back Light Compensation (Video-Kamera: Gegenlicht-Blendenvergrößerung)
BLC	Botswana Libraries Consortium
BLC	Broadband Loop Carrier (Telekommunikation/telecommunication)
BLDC	Brushless d.c. (Elektromotor/electromotor)
BLDL	Bergen Language Design Laboratory (University of Bergen, Norway)
BLER	Block Error Rate (or: Ratio) (Telekommunikation/telecommunication)
BLI	Bioluminescence Imaging
BLISK	Blade Integrated Disk (Kompressorläuferscheibe für Flugzeuge/compressor rotor disk for aircraft)
BLK	Bund-Länder-Kommission für Bildungsplanung und Forschungsförderung
BLM	Bureau of Land Management (USA)
BLO	Bodleian Library, Oxford (GB)
BLOB	Binary Large Object
BLS	Bucerius Law School (Hamburg, DE)
BLSR	Bidirectional Line Switching Ring
BLTP	Bogoljubow Laboratory of Theoretical Physics (VIK, Dubna, Russia)
BLU	Backlight Unit (in LCD-Bildschirm/screen)
BLVD	Boulevard (US Mail)
BM	Basilar Membrane
BM	Bermuda (ISO 3166)
BM	Broadband Manager
BMA	British Medical Association
BMB	Baltic Marine Biologists
BMBF	Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (DE)
BMBW	Bundesministerium für Bildung und Wissenschaft (DE)
BMBWFT	Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (DE)
BMC	Benchmarking Center (am/at the IIS, Außenstelle/branch Nürnberg, DE)
BMC	Bone Mineral Content (medicine)
BMC	Broadcast/Multicast Control (Telekommunikation/telecommunication)
BMC	Burst Mode Controller (Datennetz/data network)
BMD	Bone Mineral Density
BMDS	Ballistic Missile Defense System (USA)
BME	Biomedical Engineering
BMELV	Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz
BMFT	Bundesministerium für Forschung und Technologie (DE)
BMG	Bulk Metallic Glass
BMG	Bundesministerium für Gesundheit
BMGS	Bundesministerium für Gesundheit und Soziale Sicherung
BMI	Body Mass Index (siehe/see KMI)
BMJ	British Medical Journal
BML	Broadcast(ing) Markup Language (Telekommunikation/telecommunication)
BMLD	Binaural Masking Level Difference
BMLVS	[Österreichisches] Bundesministerium für Landesverteidigung und Sport
BMMRO	Bahamas Marine Mammal Research Organisation
BMO	Institut für Biomedizinische Optik (Universität Lübeck)
BMP	Bone Morphogenetic Protein
BMP	[Dateinamenerweiterung: Graphikdatei/file name extension: graphic file]
BMR	Ballistic Magnetoresistance
BMS	Batterie-Management-System (Elektroauto)
BMS	Business Management System
BM-SC	Broadcast/Multicast Service Center (Telekommunikation/telecommunication)
BMT	Broadband Magnetotelluric (instrumentation)
BMU	Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit (DE)
BMV	Bundesministerium für Verkehr (DE)
BMVBS	Bundesministerium für Verkehr, Bau und Stadtentwicklung (DE)
BMVg	Bundesministerium für Verteidigung (DE)
BMVI	Bundesministerium für Verkehr und digitale Infrastruktur
BMWi	Bundesministerium für Wirtschaft und Energie (DE)
BMZ	Brandmeldezentrale
BMZ	Bundesministerium für wirtschaftliche Zusammenarbeit und Entwicklung (DE)
BN	Brunei (ISO 3166)
BNC	Bayonet Neill-Concelman (Steckverbindung/connector)
BNC	Berkeley Nucleonics Corporation
BNC	biotechnologisch gewonnene Nanozellulose
BNetzA	Bundesnetzagentur (vergibt Funklizenzen/assigns radio frequencies)
BNI	Bernhard-Nocht-Institut für Tropenmedizin (Hamburg)
BNL	Brookhaven National Laboratory (Long Island, NY, USA)
BNNT	Boron Nitride Nanotubes (Festkörperphysik/solid state physics)
BNP	Brain Natriuretic Peptide
BNSC	British National Space Centre
BNV	Belgische Natuurkundige Vereniging
BO	Bolivien/Bolivia (ISO 3166)
BOB	Break-Out Box
BOC	Binary Offset Carrier (Modulation)
BoD	Bandwidth on Demand (Telekommunikation/telecommunication)
BOD	Biochemical Oxygen Demand (Ireland, test)
BoF	Birds-of-a-Feather
BOG	Board of Governors
BOGRMC	Beijing Olympic Games Radio Management Committee (Telekommunikation/telecommunication)
BOLD	Blood Oxygen Level-Dependent (Hirnaktvität/brain activity)
BÖLW	Bund für Ökologische Lebensmittelwirtschaft
BOM	Bill of Materials
BONT	Broadband Optical Network Termination
BOOMERANG	Balloon Observations of Millimetric Extragalactic Radiation and Geomagnetics
BOREXINO	Boron Solar Neutrino Experiment (Gran Sasso, IT)
BOS	Background Oriented Schlieren Method
BOS	Behörden und Organisationen mit Sicherheitsaufgaben
BOSS	Background Oriented Schlieren System
BOSS	Baryon Oscillation Spectroscopic Survey (astrophysics)
BOSS	Big Optical Single Sector (Brennkammerforschung, DLR)
BOSS	Building Operating and Security System
BOT	Build, Operate and Transfer (Telekommunikation/telecommunication)
BPDU	Bridge Protocol Data Unit (Ethernet)
BPEL	Business Process Execution Language (Telekommunikation/telecommunication)
BPF	Band-Pass Filter, Bandpassfilter
BPF	Blade Passage Frequency (of propeller)
BPH	Benign Prostatic Hyperplasia
BPH	Bisphosphonate(s) (Medikamente/pharmacy)
BPIE	Buildings Performance Institute Europe (Belgium)
BPL	bayessches Programmlernen
BPMN	Business Process Notation Language (computer programming)
BPON	Broadband Passive Optical Network (optische Telekommunikation/optical telecommunication)
BPP	Beam Parameter Product (Laserdioden/laser diodes)
BPP	Bund Philatelistischer Prüfer
BPR	Business Process Reengineering
BPS	Biophysical Society
BPS	The Bulgarian Physical Society
BPSK	Binary Phase Shift Keying (Modulation, Binäre Phasenumtastung)
BPSR	Bidirectional Path Switched Ring (Telekommunikation/telecommunication)
BPTI	Bovine Pancreatic Trypsin Inhibitor
BPtK	Bundespsychotherapeutenkammer
BPX	Burning Plasma Experiment (Fusionsreaktortechnik/fusion reactor technology, PPPL)
BQB	Bluetooth Qualification Body (Telekommunikation/telecommunication)
BQTF	Bluetooth Qualification Test Facility
bR	Bacteriorhodopsin
BR	Basic Research (ESPRIT)
BR	Biosphärenreservat (Naturschutz/nature conservation)
BR	Bottom Reflection (ocean acoustics)
BR	Brasilien/Brazil (ISO 3166)
BRA	Basic Rate Access (ISDN)
BRAC	Base Closure and Realignment Commission (USA)
BRAC	Building Resources Across Communities (Uganda)
BRAGECRIM	Brazilian German Collaborative Research Initiative in Manufacturing Technology
BRAHMS	Broad Range Hadron Spectrometer (RHIC)
BRAIN	[US] Brain Research for (or: through) Advancing Innovative Neurotechnologies (sincee 2013)
BRAN	Broadband Radio Access Network (Telekommunikation/telecommunication)
BRAS	Broadband Remote Access Server (Telekommunikation/telecommunication)
BRC	Bioenergy Research Center
BRDF	Bi-Directional Reflectance Distribution Function (Optik/optics)
BREMA	British Radio Equipment Manufacturers' Association
BREW	Binary Runtime Environment for Wireless (Telekommunikation/telecommunication)
BRGM	Bureau de Recherches Géologiques et Minières (FR)
BRIC	Brazil, Russia, India and China/Brasilien, Russland, Indien und China
BRIDGE	Bilateral Research and Industrial Development Enhancing and Integrating Grid Enabled Technologies (EU-gefördertes
	Europäisch-Chinesisches Computernetz-Projekt/EU sponsored European-Chinese computer network project)
BRIDGE	Broadening Participation Research Initiation Grants in Engineering (NSF Award, USA)
BRIR	Binaural Room Impulse Response (acoustics)
BRITE	Basic Research in Industrial Technologies for Europe
BRS	Behavioral Response Study (Meeresbiologie/marine biology)
BRS	Buried Ridge Stripe (Telekommunikation/telecommunication)
BRT	Bruttoregistertonne
BRT	Bus-Rapid-Transit (Verkehrssystem)
BS	Bahamas (ISO 3166)
BS	Bandstop (filter)
BS	Base Station (Telekommunikation/telecommunication)
BS	Basic System
BS	Beam Splitter (Optik/optics)
BS	British Standard
BS	Broadcast Satellite (Digitalrundfunk/digital broadcast)
BSA	Bovines Serumalbumin
BSA	Broadband Service Aggregator (Telekommunikation/telecommunication)
B.Sc.	Bachelor of Science
BSC	Barcelona Supercomputing Center (ES)
BSC	Base Station Controller (Telekommunikation/telecommunication)
BSC	Buffalo State University (New York, USA)
BSCCO	Bismuth-Strontium-Calcium-Copper Oxide, Wismut-Strontium-Calcium-Kupfer-Oxid, Bi2Sr2Ca2Cu3O10-x (HTSL)
BSD	Blind Signal Deconvolution
BSDL	Boundary-Scan Description Language
BSE	Base Station Emulator (Telekommunikation/telecommunication)
BSE	Blind Signal Extraction
BSE	Bonn European School of Economics e.V.
BSE	Bovine spongiforme Enzephalopathie, Bovine Spongiform Encephalopathy (Rinderwahnsinn)
BSEE	Bachelor of Science in Electrical Engineering
BSF	Back Surface Field (Solarzellen/solar cells)
BSG	Biologische Schutzgemeinschaft
BSG	Blutsenkungsgeschwindigkeit
BSG	Bundessozialgericht
BSH	Boston Symphony Hall
BSH	Bundeamt für Seeschifffahrt und Hydrographie
BSH	[Medikament zur Tumorbehandlung mit Neutroneneinfangtherapie/medicine for tumour treatment with neutron capture therapy]
BSI	British Standards Institution
BSI	Bundesamt für Sicherheit in der Informationstechnik
BSIC	Base Transceiver Station Identity (= NCC + BCC)
BSML	Biosequence Markup Language
BSMS	Brighton and Sussex Medical School
BSNR	Blurred Signal-to-Noise Ratio (Bildunschärfe/picture unsharpness)
BSO	Bismuth Silicon Oxide
BSP	Beam Synthesis Propagation (optical design)
BSP	Board Support Package (Maut-Erfassungssystem/toll registration system)
BSP	Bruttosozialprodukt
BSPC	Batch Statistical Process Control
BSR	Base Station Router (Telekommunikation/telecommunication)
BSR	Board of Standards Review (USA)
BSR	Bottom Simulating Reflector (Ozeanologie/oceanology)
BSR	Broadband Service Router (Telekommunikation/telecommunication)
BSR	Buzz/Squeeze/Rattle (noise sources)
BSRN	Baseline Surface Radiation Network
BSS	Base Station Subsystem (Telekommunikation/telecommunication)
BSS	Basic Service Set
BSS	Blind Signal (or: Source) Separation (algorithm)
BSS	Broadcasting Satellite Service
BSS	Business Support System (Telekommunikation/telecommunication)
BSSI	Basic Space Science Initiative (UN)
BST	Band Segmented Transmission (Digitalrundfunk/digital broadcast)
BSTU	Bundesbehörde für die Unterlagen des Staatssicherheitsdienstes der ehemaligen DDR
BT	Bhutan (ISO 3166)
BT	Bluetooth
BT	Business Telecommunications (TC in ETSI)
BTA	Biologisch-technische(r) Assistent(in)
BTA	Broadcasting Technical Association (Japan)
BTBP	Bistriazinylbipyridin
BTC	Bayer–Tsinghua Joint Research Center for Innovative Drug Discovery (Peking, China)
BTE	Behind-the-Ear (hearing aid)
BTE	Boltzmann Transport Equation
BTEX	Benzol, Toluol, Ethylbenzol und Xylole (Aromaten, die das Grundwasser verunreinigen)
BTF	Broadcast Technology Futures Group
BTL	Biomass to Liquid (synthetischer Kraftstoff/synthetic fuel)
BTNRH	Boys Town National Research Hospital (Omaha, NE, USA)
BTP	Bistriazinylpyridin
BTPG	Boundary-Scan-Test-Program Generation
B/TQE	Project Group on Television Quality Evolution
BTS	Base Transceiver Station (Telekommunikation/telecommunication)
BTS	Broadcast Television Systems GmbH (Darmstadt, DE)
BTS	Broadcasting Transport Stream
BTU	Brandenburgische Technische Universität
BTV	Broadcast Television
BTW	by the way
Btx	Bildschirmtext
BU	Boston University (MA, USA)
BU	Branching (or: Business) Unit (Rechnernetze, Telekommunikation/computer networks, telecommunication)
BUA	Broadband Ultrasound Absorption
BUC	Break-Up Camera (DLR, Raumfahrt)
BuFDi	Bundesfreiwilligendienst (= BFD, seit 2011)
BUFORA	British UFO Research Association
Bull. P&I T.I.T.	Bulletin of Precision and Intelligence Laboratory, Tokyo Institute of Technology (Yokohama, Japan)
BUND	Bund für Umwelt und Naturschutz Deutschland e.V.
BUV	Backscatter UV (spectrometer)
BV	Bouvetinsel/Bouvet Island (ISO 3166)
BVA	Berufsverband der Augenärzte Deutschlands e.V.
BVA	British Radio Valve Manufacturers' Association
BvD	Berufsverband der Datenschutzbeauftragten Deutschlands
BVDD	Berufsverband der Deutschen Dermatologen
BVG	Berliner Verkehrsgesellschaft
BVL	Bundesamt für Verbraucherschutz und Lebensmittelsicherheit
BVND	Berufsverband der niedergelassenen Diabetologen
BVPN	Broadband Virtual Private Network
BVW	Betriebliches Vorschlagswesen
BW	Baden-Württemberg (Bundesland/German Federal State)
BW	Bandwidth
b.w.	bitte wenden (engl.: p.t.o.)
BW	Botswana (ISO 3166)
BWA	Broadband Wireless Access (Telekommunikation/telecommunication)
BWB	Beratungsgesellschaft für Wirtschaftliches Bauen
BWB	Blended Wing Body (Flugzeug/aircraft)
B-WiN	Breitband-Wissenschaftsnetz (Datennetz, bis/data network, up to 155 Mbit/s)
BWL	Beriebswirtschaftslehre
BWL	Burst Wave Lithotripsy
BWR	Boiling-Water Reactor (nuclear reactor)
BY	Bayern (Bundesland/German Federal State)
BY	Weißrussland/Belarus (ISO 3166)
BYOD	Bring Your Own Device
BYU	Brigham Young University (Provo, UT, USA)
BZ	Belize (ISO 3166)
BZ	Belousov-Zhabotinsky (oszillierende chemische Reaktion/oscillating chemical reaction)
BZ	Brennstoffzelle (= FC)
BZgA	Bundeszentrale für gesundheitliche Aufklärung
BZMM	Berliner Zentrum für Mechatronische Medizintechnik
B2B	Business-to-Business
B2C	Business-to-Consumer (or: Customer)
B3G	Beyond Third Generation (Telekommunikation/telecommunication)

C

c...	Zenti... (Präfix/prefix): 10-2
C	Cytosin (DNA-Base/DNA base)
CA	California (US-Staat/US state)
CA	Call Agent (Telekommunikation/telecommunication)
CA	Cancer (Krebs)
CA	Carrier Aggregation (Telekommunikation/telecommunication)
CA	Cellular Automata
CA	Code Acquisition
CA	Computer Algebra
CA	Computer-Animation
CA	Conditional Access (Telekommunikation/telecommunication)
CA	Conservation Agriculture
CA	Kanada/Canada (ISO 3166)
C/A	Coarse/Acquisition (GPS)
CAA	Canadian Acoustical Society
CAA	Civil Aviation Authority (UK)
CAA	Clean Air Act
CAA	Computational Aeroacoustics
CAAT	Center for Alternatives to Animal Testing (Johns Hopkins University, Baltimore, MD, USA)
CABP	China Architecture and Building Press
CABR	Complex Auditory Brainstem Response
CAC	Call Acceptance (or: Admission) Control (Telekommunikation/telecommunication)
CAC	Center for Advanced Computing
CACSD	Computer Aided Control System Design
CAD	Computer Aided Design
CADE	Computer Algebra and Differential Equations (Programm bei der GMD/research program of the GMD)
CADSTI	Caribbean Diaspora for Science, Technology, and Innovation
CAE	Center for Astronomy Education (University of Arizona, USA)
CAE	Computer Aided Engineering
CAESAR	Center of Advanced European Studies and Research (Bonn, DE)
CAEX	Computer Aided Engineering Exchange (Maschinensprache)
CAFE	Corporate Average Fuel Efficiency (or: Economy)
CAG	Computer Aided Gage (or: Gaging) (computerunterstützte Kfz-Schaltung/automobile gear)
CAGE	Centre for Arctic Gas Hydrate, Environment and Climate
CAGR	Compound Annual Growth Rate
CAHA	Centro Astronómico Hispano-Aléman (= DSAZ) (Calar Alto)
CAI	Calcium-Aluminum Inclusion (Astrophysik/astrophysics)
CAI	Cavity as Interface
CAI	Computer-Aided (or: Assisted) Instruction
CAIMIS	Chemistry Analysis Information Management Interface System
CAIP	Center for Advanced Information Processing (Rutgers University, USA)
CAIR	Center for Artificial Intelligence Research (Korea)
CAL	Computer-Aided (or: Assisted) Learning
CALI	chromophorassistierte lichtgesteuerte Inaktivierung
CALIPSO	Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation
CALM	Commercial Advertisement Loudness Mitigation (act, USA 2010)
CALO	Cognitive Agent that Learns and Organizes
Caltech	California Institute of Technology (Los Angeles, CA, USA)
Caltrans	California Department of Transportation
CAM	Career Asset Manager (IEEE)
CAM	Centre of Advanced Materials (University of Heidelberg, DE)
CAM	Computer Aided Manufacturing
CAMA	Crew Assistant System for Military Aircraft
CAMEL	Cellular Automata Environment for Systems Modelling
CAMEL	Customized Applications for Mobile (Network) Enhanced Logic (Telekommunikation/telecommunication)
CAMEO	Computer Aided Mechanistic Evaluation of Organic Reactions
CAML	Census of Antarctic Marine Life
CAMP	Channel Amplifier
cAMP	Cyclic Adenosine Monophosphate, cyclisches Adenosinmonophosphat
CAMPARE	California-Arizona Minority Partnership for Astronomy Research and Education
CAMPEP	Commission on Accreditation of Medical Physics Education Programs (USA)
CAMS	Card Application Management System (Smart Card)
CAMVis	Coupled Advanced Modeling and Visualization
CAN	Control(ler) Area Network
CAN	Customer Access Network
CANDU	Canada Deuterium Uranium (reactor)
CANIF	Carbon and Nitrogen Cycling in Forest Soils
CANOLA	Canadian Oil, Low Acid (Raps-Neuzüchtung)
CAO	Carnegie Airborne Observatory
CAO	Computer Aided Optimization
CAOHC	Council for Accreditation in Occupational Hearing Conservation
CAP	Camel Applications Part (Telekommunikation/telecommunication)
CAP	Canadian Association of Physicists
CAP	Capabilities Application Part (Telekommunikation/telecommunication)
CAP	Carrierless Amplitude Phase (modulation)
CAP	Committee on Applied Physics (APS)
CAP	Common Agricultural Policy (EU)
CAP	Computer Aided Painting (Lackier-Roboter)
CAP	Council of the American Physical Society
CAPA	Corrective Actions and Preventive Actions
CAPE	Computer Assisted Process Engineering
CAPE	Convective Available Potential Energy (tornado research)
CAPES	Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (BR)
CAPEX	Capital Expenditure
CAPI	Common Application Programming (Telekommunikation/telecommunication)
CAPP	Center for Axion and Precision Physics Research (KAIST)
CAPR	Center for Advanced Preclinical Research (at NCI)
CAPRA	Concept to Amplify Plutonium Reduction in Advanced Fast Reactors (CEA)
CAPS	Call Attempts per Second (Telekommunikation/telecommunication)
CAPT	Center for Applied Physics and Technology (Peking University, China)
CAPTCHA	Completely Automated Public Turing Test to Tell Computers and Humans Apart (Internet)
CAQ	Computer Aided Quality
CAR	Center Automotive Research (FH Gelsenkirchen, DE)
CAR	Chimeric Antigen Receptor, chimärer Antigenrezeptor
CARA	California Association for Research Astronomy
CARAT	Computer Aided Radio and Television
CARB	California Air Resources Board
CARD	Controlled Access to Research Data Stored Securely
CARE	Comprehensive Approach for Recycling of Electronics
CARF	Council for Accreditation of Rehabilitative Facilities (USA)
CARIBIC	Civil Aircraft for the Regular Investigation of the Atmosphere Based on an Instrument Container
CARIBU	Californium Rare Isotope Beam Upgrade (Argonne National Laboratory, near Chicago, IL, USA)
CARICOM	Caribbean Community (Haiti, Guyana, Suriname, Belize, West Indies)
CARL	Colorado Alliance of Research Libraries
CARMA	Combined Array for Research in Millimeter-Wave Astronomy (Cedar Flat, CA, USA)
CARMA	Cooperative Arrival Manager (Flugverkehr/air traffic)
CarNak	Carbon Nanotube Aktuatorik
CAROD	Computer Aided Robust Design
CARPET	Cellular Programming Environment
CARROUSO	Creating, Assessing and Rendering in Real Time of High Quality Audio-Visual Environments in MPEG-4 Context (3D-Klangverfahren/3D sound reproduction)
CARS	Center for Advanced Radiation Sources (Chicago, IL, USA)
CARS	Coherent Anti-Stokes Raman Spectroscopy (or: Scattering)
CART	Center for Advanced Radiotherapy Technologies (UCSD)
CART	Classification and Regression Trees (statistical analysis)
CART	Combination Antiretroviral Therapy
CAS	Calorimetric Absorption Spectroscopy
CAS	Catgut Acoustical Society (promoting violin acoustics)
CAS	Channel Associated Signaling
CAS	Chemical Abstracts Service (Datenbak, seit/data bank, since 1907)
CAS	Chinese Academy of Sciences (Beijing, CN)
CAS	Committee on Assurance of Supply
CAS	Complex Adaptive Systems
CAS	Conditional Access System (Digitalrundfunk/digital broadcast)
CAS	Controlled Access Service
Cas	CRISPR-Associated
CASA	Computational Auditory Scene Analysis
CASAGRAS	Coordination and Support Action for Global RFID-Related Activities and Standardization (EU project in FP7)
CaSE	Campaign for Science and Engineering
CASE	Computer Aided Software Engineering
C2A2S2E	Center for Computer Applications in Aerospace Science and Engineering (DLR, Braunschweig, DE)
CASI	Canadian Aeronautic and Space Institute
CASIPS	Close to Application Study in Polymer Science (IAP-Förderprogramm/IAP grant program)
CISIS	Center for the Advancement of Science in Space (USA)
CASL	Consortium for Advanced Simulation of Light Water Reactors (ORNL, USA)
CASP	Center for Autonomous Solar Power (State University of New York, Binghamton, USA)
CASP	Competitive Access Service Provider (Telekommunikation/telecommunication)
CASP	Critical Assessment of [Techniques for] Protein Structure Prediction
CASRAI	Consortia Advancing Standards in Research Administration Information
CASSE	Comet Acoustical Surface Sounding
CASS-MT	Center for Adaptive Supercomputing Software for Multithreaded Architectures
CAST	Cardiac Arrythmia Suppression Trial
CAST	[Competence] Center for Applied Security Technology
CAST	CERN Axion Solar Telescope
CAST	Chinese Association for Science and Technology
CAT	Collaborative Access Team (at APS, Argonne)
CAT	Computer-Aided Teaching
CAT	Computer-Aided Tomography
CAT	Computerized Axial Tomography
CAT	Conditional Access Table (Telekommunikation/telecommunication)
CATC	Continuous Automatic Train Control (Eisenbahntechnik/railway technology)
CATI	Computer Assisted Telephone Interviewing
CATS	Capacitive Anti-Finger-Trap System (Einklemmschutz bei Autofenstern/vehicle windows)
CATS	Climate-Compatible Air Transport System
CATS	Collaboration of Astronomy Teaching Scholars (USA)
CATV	Cable Television
CATV	Coaxial Television
CATV	Community (or: Common) Antenna Television
CAU	Christian-Albrechts-Universität (Kiel)
CAUL	Council of Australian University Libraries
CAVE	Cave Automatic Virtual Environment
CAVE	Computer Aided Virtual Environment
CA9	Carboanhydrase 9 (Tumorbekämpfung/cancer treatment)
CB	Cellular Broadcast
CB	Citizen Band (Mobilfunk/mobile radio, 26.565 – 27.405 MHz)
CB	Control Burst (Telekommunikation/telecommunication)
CBC	Canadian Broadcasting Corporation
CBC	Cell Broadcast Center (Telekommunikation/telecommunication)
CBDS	Connectionless Broadband Data Service
CBEN	Center for Biological and Environmental Nanotechnology (Rice University, USA)
CBI	Cosmic Background Imager (Radioteleskop–Array/radio telescope array in Chile)
CBIR	Center for Brain Injury and Repair (University of Pennsylvania, USA)
CBIR	Content-Based Image Retrieval
CBIIT	Center for Biomedical Informatics and Information Technology
CBM	Compressed Baryonic Matter
CBMC	Convergence of Broadcast and Mobile Services (Telekommunikation/telecommunication)
CBME	Center of Business Model Engineering
CBN	Cubic Boron Nitride
CBO	Compact Base Station Outdoor (Mobilfunk/mobile radio)
CBO	Congressional Budget Office (USA)
CBOE	Chicago Board Options Exchange (Börsenhandel/stock exchange)
CBP	Customs and Border Protection (USA)
CBP	[Fraunhofer-Zentrum für] Chemisch-Biotechnologische Prozesse (Leuna)
CBPF	Centro Brasileiro de Pesquisas Fisicas (Brazilian Center for Research in Physics)
CBQ	Class Based Queuing (Telekommunikation/telecommunication)
CBR	Constant Bit Rate (Datenübertragung/data transfer)
CBR	Content-Based Retrieval
CBS	Cell Broadcast Service (Telekommunikation/telecommunication)
CBS	Centre for Biological Sequence Analysis (Technical Union of Denmark)
CBS	Centrum für Schlaganfall-Forschung Berlin (Charité)
CBSDM	Component-Based Scene Description Model
CBT	Computer Based Training
CBT	Coulomb Blockade Thermometer
CBTC	Communication Based Train Control (Eisenbahntechnik/railway technology)
CBTL	Certification Body Testing Lab
CC	Call Control (Layer 3)
CC	Capital Cost
cc	Carbon Copy (Durchschlag)
CC	Competence Center (computer networks)
CC	Component Carrier (Telekommunikation/telecommunication)
CC	Connection Coordinator
CC	Continuity Checking (Telekommunikation/telecommunication)
CC	Copyright Compliant (Telekommunikation/telecommunication)
CC	Creative Commons (kostenlos nutzbar)
CC	Cross Connect (Telekommunikation/telecommunication)
CC	Kokosinseln/Cocos Islands (ISO 3166)
CCA	Center for Computational Astrophysics (University of Pensylvania, USA)
CCA	Clear Channel Assessment (Telekommunikation/telecommunication)
CCA	Continuum Computer Architecture
CCA	Copy Control Association
CCAPP	Center for Cosmology and Astroparticle Physics (Ohio State University, Columbus, OH, USA)
CCAR	Climate Change and Atmospheric Research (Program, Canada)
CCAST	Center for Computationally Assisted Science and Technology (NDSU, USA)
CCAT	Cerro Chajnantor Atacama Telescope
CCAT	Cornell Caltech Atacama Telescope (Radioteleskop/radio telescope, geplant für/planned for 2013)
CCB	Climate-Culture-Building
CCB	Customer Care and Billing (Telekommunikation/telecommunication)
CCBS	Customer Care and Billing System (or: Service) (Telekommunikation/telecommunication)
CCC	Capability Computing Campaign
CCC	Clatterbridge Cancer Centre (Liverpool, GB)
CCC	Comprehensive Cancer Center (Heidelberg, DE)
CCC	Cross-Correlation Coefficient
CCC	Copyright Clearance Center, Inc.
CCCH	Common Control Channel (Telekommunikation/telecommunication)
CCD	Carbonate Compensation Depth (im Meer/in the Ocean)
CCD	Center for Coatings and Diamond Technologies (Michigan State University in East Lansing, USA)
CCD	Centre-to-Centre Displacement (microoptics)
CCD	Charge-Coupled Device
CCD	Click Change Detection (Wal-Laute/whale sounds)
CCD	Colony Collapse Disorder (Bienenkrankheit/honeybee disease)
CCDF	Complementary Cumulative Distribution Function (Telekommunikation/telecommunication)
CCDM	Consultive Committee for the Definition of the Metre
CCDS	Comité Consultatif pour la Definition de la Seconde
CCE	Cloud Center Efficiency
CCE	Comité Consultatif d'Electricité
CCEM	Centre for Emerging Device Technologies (McMaster University, Hamilton, ON, CA)
CCES	Center for Computational Engineering Science (RWTH Aachen, DE)
CCES	Climate Science Computational End Station (USA)
CCF	Call Control Function (Telekommunikation/telecommunication)
CCF	Capillary Channel Flow
CCF	Cross-Correlation Function
CCFL	Cold-Cathode Fluorescent Lamp
CCG	Chemical Computing Group (UK)
CCH	Congress Center Hamburg
CCHP	Combined Cooling, Heating, and Power (Kraftwerk/power station)
CCI	Climate Change Inititative (ESA program)
CCI	Co-Channel Interference (Telekommunikation/telecommunication)
CCI	Comité Consultatif International [des communications téléphoniques à grande distance] (seit/since 1924)
CCIB	Center for Computational and Integrative Biology (Rutgers University, USA)
CCID	Coordinating Center for Infectuous Disease (Atlanta, GA, USA)
CCIF	Comité Consultatif International Téléphonique (später/later on: CCIT)
CCIR	Comité Consultatif International des Radiocommunications
CCIT	Comité Consultatif International des Communications Télégraphiques (gegründet/founded 1925,
	ab/since 1956: Comité Consultatif International de Communication Télégraphique et Téléphonique)
CCITT	Comité Consultatif International pour la Télégraphie et le Téléphone
CCK	Complementary Code Keying (Telekommunikation/telecommunication)
CCL	[Fraunhofer-] Center for Coatings and Laser Applications (Michigan, USA)
CCL	Commerce Control List (USA)
CCLD	Constant Current Line Drive (Konstantstromversorgung)
CCLRC	Council for the Central Laboratory of the Research Councils (UK)
CCM	Certified Consulting Meteorologist (American Meteorological Society program)
CCM	Climate Control Module (für Autos/for cars)
CCM	Cluster Compatibility Mode
CCM	Comité Consultatif pour la Masse et les Grandeurs Apparantées
CCM	CORBA Component Model (Telekommunikation/telecommunication)
CCMR	Collaborative Conference on Materials Research
CCMS	Center for Condensed Matter Sciences (National Taiwan University)
CCNY	City College of New York (USA)
CCO	Central Coordination Office
CCO	Chief Compliance Officer
CCP	Chinese Communist Party
CCP	Customer Convenience Port
CCPCH	Common Control Physical Channel (Telekommunikation/telecommunication)
CCPR	Comité Consultatif de Photométrie et Radiométrie
CCQS	Center for Controlled Quantum Systems (Stevens Institute of Technology, Hoboken, NJ, USA)
CCRA	Common Criteria Recognition Agreement
CCS	Carbon (Dioxide) Capture and Storage Technologies
CCS	Center for Computing Sciences (IDA)
CCS	College of Creative Studies (at UCSB)
CCS	Common Channel Signaling
CCS	Compute Cluster Server (Windows, 2003)
CCS	CO2 (or: Carbon) Capture and Storage (Umweltschutz/environment conservation)
CCS	Satellite Control Center
CCSA	China Communications Standard Association (Telekommunikation/telecommunication)
CCSM	Community Climate System Model (Klimaforschung/climate research)
CCSU	Central Connecticut State University
CCT	Center for Computation and Technology (at LSU)
CCT	Correlated Colo(u)r Temperature
CCT	Cyclic Corrosion Test, zyklischer Korrosionstest
CCTS	Carbon Capture, Transport and Storage
CCTV	China Central Television
CCTV	Closed Circuit Television
CCV	Control-Configured Vehicle (Flugzeug/aircraft)
CCVC	Capacitively Coupled Voltage Contrast
CCW	Convention on Certain Conventional Weapons
CCW	counterclockwise
CCXML	Call Control Extensible Markup Language (Telekommunikation/telecommunication)
CC0	Creative Commons Zero
CD	Chromatic Dispersion (Glasfaser/glass fiber)
CD	Circular Dichroism (spectroscopy)
CD	Compact Disc
CD	Demokratische Republik Kongo (früher Zaire)/Democratic Republic of Congo (former Zaire) (ISO 3166)
CDA	Clinical Document Architecture (HLJ)
CDA	Committee on Diversity in Acoustics (ASA, USA)
CDA	Confirmatory Data Analysis
CDA	Continuous Descent Approach (Flugverkehr/air traffic)
CDA	Convent deutscher Akademikerverbände
CDA	[Dateinamenerweiterung: CD-Titel auf Musik-CD/file name extension: CD title on music CD]
CDA	Cosmic Dust Analyzer
CDC	Cell Division Cycle
CDC	Center for Disease Control [and Prevention] (e.g., Atlanta, GA, USA)
CDC	China Development Corporation (Taiwan)
CDC	Compact Diagnostic Chamber (Telekommunikation/telecommunication)
CDC	Continuous Damping Control
CDC	Control Data Corporation
CDD	Childhood Disintegrative Disorder
CDD	Collaborative Drug Discovery
CDDI	Copper Distributed Data Interface
CDE	Common Desktop Environment
CDE	Component Development Environment (Telekommunikation/telecommunication)
CDEX	China Dark Matter Experiment
CDF	Channel Definition Format
CDF	Collider Detector at Fermilab
CDF	Cumulative Density (or: Distribution) Function
CDG	Carl-Duisberg-Gesellschaft
CDG	Christian Doppler Forschungsgesellschaft (Austria)
CDG	Congenital Disorders of Glycosylation
CDH	Completely Detached H-Regime (Fusionsreaktortechnik/fusion reactor technology)
CDI	Collaborative Data Infrastructure (EU project)
CD-I	Compact Disc-Interactive
CDK	Cyclin Dependent Kinase (Medizin/medicine)
CDL	Coordinated Development Laboratory (NRAO)
CDLCME	Christian Doppler Laboratory for Cavitation and Micro-Erosion (Göttingen, DE)
CDM	Clean Development Mechanism (Umweltschutz/environment conservation)
CDM	Code Division Multiplex(ing)
CDM	Cold Dark Matter (Kosmologie/cosmology)
CDMA	Code Division Multiple Access (Mobilfunk/mobile radio)
CDMS	Clinical Data Management System
CDMS	Cryogenic Dark Matter Search (Astrophysik/astrophysics, USA)
CDN	Content Delivery (or: Distribution) Network (Telekommunikation/telecommunication)
CDN	Coupling/Decoupling Network (Telekommunikation/telecommunication)
cDNA	Complementary DNA
CDO	Collateral Debt Obligation (Wertpapierhandel/stock exchange)
CDO	Consortium Directory Online
CDP	Code Domain Power (Telekommunikation/telecommunication)
CDP	Core Description Profile (Telekommunikation/telecommunication)
CdPNo	Called Party Number (Telekommunikation/telecommunication)
CDR	Call Data (or: Detail) Record (Telekommunikation/telecommunication)
CDR	Carbon Dioxide Removal (climate engineering)
CDR	Clock Division (or Data) Recovery (Telekommunikation/telecommunication)
CDR	[Dateinamenerweiterung: Corel Draw-Graphikdatei/file name extension: Coral Draw graphic file]
CDR	Critical Design Review
CDRH	Center of Devices and Radiological Health (US Food and Drug Administration)
CD-ROM	Compact Disc Read-Only Memory
CDS	Chromatography (Handling) Data System
CDS	Clinical Decision Support (USA)
CDS	Coronal Diagnostic Spectrometer (an Bord von/aboard SOHO)
CDS	Correlated Double Sampling (Rauschunterdrückung/noise reduction)
CDS	Credit Default Swap (Börsenhandel/stock exchange)
CDS	Crosspoint Development System
CDT	Causal Dynamical Triangulation (Gravitationstheorie/theory of gravitation)
CDT	Conductivity, Temperature, Depth (sensors for marine research)
CDTI	Cockpit Display for Traffic Information (Flugsicherung/flight security)
CDU	Cooling (or: Coolant) Distribution Unit (HPC)
CDV	Cell Delay Variation
CDVT	Cell Delay Variation Tolerance
CDW	Charge-Density Wave
CDZ	Chinesisch-Deutsches Zentrum für Wissenschaftsförderung (Beijing)
CE	Capillary Electrophoresis
CE	Carrier Ethernet (Telekommunikation/telecommunication)
CE	Chief Executive
CE	Circuit Emulation (Telekommunikation/telecommunication)
CE	Communauté (oder/or: Conformité) Européenne
CE	Consumer Electronics
CE	Customer Edge (or: Equipment) (Telekommunikation/telecommunication)
CE	Kapillarelektrophorese
CEA	Center for Extreme Ultraviolet Astrophysics (Berkeley, CA, USA)
CEA	Commisariat à l'Energie Atomique (Fontenay aux Roses, FR)
CEA	Consumer Electronics Association (USA)
CEAASES	Consejo de Evaluacion Acreditacion y Aseguramemiento de la Calidad de la Educacion Superior
	(Board of Assessment, Accreditation and Quality Assurance in Higher Education, Ecuador)
CEAS	Confederation (or: Council) of European Aerospace Societies
CEAUL	Centro de Estatística e Aplica¸ões da Universidade de Lisboa (PT)
CEBAF	Continuous Electron Beam Accelerator Facility (Newport News, VA, USA)
CeBIT	Centrum für Büro- und Informationstechnik (Messe, Hannover/Hanover fair, DE)
CEC	Commission of the European Communities
CEC	Consumer Electronics Control (Telekommunikation/telecommunication)
CEC	Countries of Central Europe (ehem. Ostblockländer/former Eastern Block countries)
CECS	Center for Energy and Climate Solutions (Annadale, VA, USA)
CEC-WYS	Central European Centre for Women and Youth in Science
CEDIA	Custom Electronic Design and Installation Association (USA)
CEDIM	Center for Disaster Management and Risk Reduction Technology (Univ. Karlsruhe, DE)
CEDR	Clinical and Experimental Dental Research
CEDR	Conference of European Directors of Roads
CÈDRE	Centre of Documentation, Research and Experimentation on Accidental Water Pollution (French Organization)
CEDT	Centre for Emerging Device Technologies (McMaster University, Hamilton, ON, CA)
CEE	Civil and Environmental Engineering
CEE	Controlled Exposure Experiment
CEEES	Committee of European Environmental Engineering Societies (at the ICT, Pfinztal, DE)
CEEM	Center for Exploration of Energy and Matter (Indiana University, USA)
CEET	Clean and Efficient Energy Technologies
CEF	Concurrent Engineering Facility (DLR, Bremen, DE)
CEFE	Centre for Functional and Evolutionary Ecology (Montpellier, FR)
CEFS	Centre for Entrepreneurial and Financial Studies (TU München, DE)
CEGMR	Center of Excellence in Genomic Medicine Research (King Abdulaziz University, Saudi Arabia)
CEHMS	Center for Energy Harvesting Materials and Systems (VPI&SU, Blacksburg, VA, USA)
CEI	Central European Initiative
CEI	Commission Electrotechnique Internationale (= IEC)
CEIC	Committee on Electronic Information and Communication
CEIN	Center for Environmental Implications of Nanotechnology (University of California at Los Angeles, USA)
CELIA	Centre for Lasers and Intense Applications (Bordeaux, FR)
CELIAS	Charge, Element and Isotope Analyses System (an Bord von/aboard SOHO)
CellID	Cell Identification (Telekommunikation/telecommunication)
CELP	Code-Excited Linear Prediction
CELT	California Extremely Large Telescope
CELTIC	Cooperation for a Sustained European Leadership in Telecommunications
CEM	Center for Electromechanics (University of Texas in Austin, USA)
CEM	Channel Electron Multiplier
CEMA	Consumer Electronics Manufacturers Association
CeMAS	Centre for Modern East Asian Studies (University of Göttingen, DE)
CMaST	Center for Excellence in Mathematics and Science Teaching (California State Polytechnic University, Pomona)
CeMIS	Centre for Modern Indian Studies (University of Göttingen, DE)
CEMS	Conversion Electron Mössbauer Spectroscopy
CEN	Centre d'études nucléaires (Bordeuax-Gradignan, FR)
CEN	Comité Européen de Normalisation [European Committee for Standardization, Europäisches Komitee for Normung]
CENAM	Centro Nacional de Metrología (MX)
CENELEC	Comité Européen de Normalisation Électrotechnique
CENER	[National Renewable Energy Centre] (Spain)
CeNoS	Center for Nonlinear Science (University of Münster, DE)
CENPA	Center for Nuclear and Particle Astrophysics (University of Washington, USA)
CeNS	Center for NanoScience (LMU, München, DE)
CentRec	Zentrifugalreceiver (DLR)
CEO	Chief Executive Officer (entspricht Vorstandschef bei einer AG)
CEOAE	Click-Evoked Otoacoustic Emission
CEOCT	Confocal Enhanced Optical Coherence Tomography
CEOS	Committee on Earth Observing Satellite
CEPBA	Centre for Parallelism of Barcelona (Spain, Computer Center)
CEPI	Confocal Fabry-Perot Interferometer
CEPII	Centre d'Études Prospectives et d'Informations Internationales (Paris, FR)
CEPR	Center for Economic Policy Research (FR)
CEPS	Centre for European Policy Studies (Bruxelles, BE)
CEPSAR	Centre for Earth, Planetary, Space and Astronomical Research (UK)
CEPT	Conférence Européenne des Postes et (des) Télécommunications
CER	Communicating European Research (Meeting)
CER	Community of European Railways
CERAM	Centre d'essais et de recherche automobile de Montefontaine (bei/near Paris, FR)
CeraStorE	Competence Center for Ceramic Materials and Thermal Storage in Energy Research (DLR, Köln)
CERC	Canadian Excellent (or: Canada Excellence) Research Chair (e.g., University of Ottawa, Canada)
CERC	Clean Energy Research Centre
CERCA	Center for Education and Research in Cosmology and Astrophysics (Case Western University, Cleveland, OH, USA)
CERC3	Chairmen and Directors of European Research Council's Chemistry Committees
CEREQ	Centre d'Etude de Recherche sur les Qualifications
CERES	Chemical Evaluation and Risk Estimation System
CERES	Clouds and the Earth's Radiant Energy System (Satelliten-Erd-Fernerkundung/satellite remote earth sensing)
CERIF	Common European Research Information Format
CERN	Conseil Européenne pour la Recherche Nucléaire (jetzt/now: Organisation Européenne ...)
CERP	Centre of European Research Projects
CERRO	Central European Regional Research Organization
CERT	Computer Emergency Response Team
CERTH	Centre for Research and Technology Hellas (Thessaloniki, GR)
CES	Cambridge Engineering Selector [Database] (UK)
CES	Circuit Emulation Services (Telekommunikation/telecommunication)
CES	Computational Engineering Science
CES	Computer Earth Sciences Group (at BSC, Barcelona)
CES	Consumer Electronics Show
CESAR	Cost-Efficient Methods and Processes for Safety Relevant Embedded Systems
CESE	[Fraunhofer-] Center for Experimental Software Engineering (Maryland, USA)
CESGA	Centro de Supercomputatión de Galicia (ES)
CESM	Community Earth System Model
CeSMa	Center Smart Materials (FhG-ISC)
CESoE[TH]	Circuit Emulation Service(s) over Ethernet (Telekommunikation/telecommunication)
CESRA	Community of European Solar Astronomers
CEST	C Expert System Tools
CEST	Chemical Exchange Saturation Transfer (Biomedizin/biomedicine)
CET	Kryoelektronentomografie
CETA	Center of Excellence for Advanced Technology
CETA	College of Engineering, Technology, and Architecture
CETHEDEC	Centre d'études théoriques de la détection et des communications (FR)
CETIM	Centre technique des industries mécaniques (FR)
CETUP	Center for Theoretical Underground Physics and Related Areas (South Dakota, USA)
CEZA	Curt-Engelhorn-Zentrum Archäometrie (Mannheim)
CF	Characteristic Frequency
cf	cubic foot, cubic feet
CF	Cystische Fibrose (Mukoviszidose)
C&F	Cost and Freight (Handelsverkehr/trade)
CF	Zentralafrikanische Republik/Central African Republic (ISO 3166)
CfA	Center for Astrophysics (Harvard-Smithonian, Cambridge, MA, USA)
CFA	Color Filter Array (Bildverarbeitung/picture processing)
CFAR	Constant-False-Alarm Rate (Telekommunikation/telecommunication)
CFC	Carbon Fiber Reinforced Carbon
CFC	Chlorofluorocarbon
CFCAS	Canadian Foundation for Climate and Atmospheric Sciences
CFD	Computational Fluid Dynamics, scherzhaft auch/jokingly also: Colorful Fluid Dynamics
CFDS	Center for Doctoral Studies (RWTH Aachen, DE)
CFEL	Centre for Free-Electron Laser Science (Hamburg, DE)
CFF	Consistent-Force-Field (molecular physics)
CFFL	Columbus Free Flying Laboratory (Raumfahrt/spacecraft)
CFFS	Conventional Fish-Finding Echo Sounder
CFG	Context-Free Grammar (Sprachverarbeitung/speech processing)
CFG	[Dateinamenerweiterung: Konfigurationsdatei/file name extension: configuration file]
CFHT	Canada-France-Hawaii Telescope (Mauna Kea)
CFI	Canada Foundation for Innovation (Saskatoon, Saskatchewan, CA)
CFI	Canonical Format Indicator (Telekommunikation/telecommunication)
CFI	Color Flow Imaging (Ultraschall-Doppler-Verfahren/ultrasound Doppler method)
CFIT	Controlled Flight into Terrain
CFK	Kohlenstofffaser-verstärkte Kunststoffe
CFL	CAD Framework Laboratory
CFL	Compact Fluorescent (Bulb)
CFM	Confocal Microscopy
CFMS	Centre for Modelling and Simulation
CFN	Center for Functional Nanomaterials (Brookhaven National Laboratory, USA)
CFO	Carrier Frequency Offset (Datenübertragung/data transfer)
CFO	Chief Financial Officer
CFP	Center for Fundamental Physics (Northwestern University, USA)
CFP	Common Fisheries Policy (Europe)
CFP	Contention Free Period (Telekommunikation/telecommunication)
CF-PEEK	kohlenstofffaserverstärktes PEEK
CFR	Code of Federal Regulations (FDA)
CFRP	Carbon-Fiber Reinforced Plastic
CFSAN	Center for Food Safety and Applied Nutrition (USA)
CFSE	Center for Frontier Science and Engineering (Tokyo, JP)
CFT	Conformal Field Theory (cosmology)
CFTR	Cystic Fibrosis Transmembrane Conductance Regulator
CFU	Colony Forming Units (Bakterien/bacteries)
CFV	Call for Votes (Rechnernetz/computer network)
CG	Charging Gateway
CG	Computer Graphics
CG	Chorion Gonadotropin (ein Hormon/a hormone)
CG	Volksrepublik Kongo/People's Republic of Congo (ISO 3166)
CGA	Cancer Genome Atlas
CGA	Ceramic Grid Array (Halbleitertechnik/semiconductor technology)
CGA	Color Graphics Adapter
CGC	Chemical Genomic Center (Dortmund, DE)
CGC	Complementary Ground Component (ergänzt/supplement to DVB-SH)
CGD	Coplanar Grid Detector
CGE	Compagnie Générale d'Electricité
CGH	Comparative Genomic Hybridisation (Mikroarraytechnik/microarray technology)
CGH	Computer-Generated Hologram
CGI	Common Gateway Interface (Telekommunikation/telecommunication)
CGIAR	Consultative Group for International Agricultural Research
CGM	Computer Graphics Metafile [Dateinamenerweiterung: Graphikdatei/file name extension: graphic file]
CGM	Consumer Generated Media
CGM	Continuous Glucose Monitoring
CGMP	Current Good Manufacturing Practice
CGMS	Copy Generation Management System
CGPM	Conférence Générale des Poids et Mesures
CGRM	Centre Grenoblois de Résonance Magnétique (Grenoble, FR)
CGRO	Compton Gamma Ray Observatory
cgs	Centimeter – Gramm – Sekunde (Maßsystem/system of units)
CGS	Continuous Grain Silicon (Halbleitertechnik/semiconductor technology)
CGS	Corporate GSM Server (Telekommunikation/telecommunication)
CGS	Council of Graduate Schools (USA)
CGSU	Cornell Graduate Students United (USA)
CGWA	Center for Gravitational Wave Astronomy (University of Texas, Brownsville, TX, USA)
CH	Schweiz/Switzerland (ISO 3166)
CHABA	[US National Academy of Sciences] Committee on Hearing, Acoustics, and Bioacoustics
CHAP	Challenge Handshake Authentication Protocol (Telekommunikation/telecommunication)
CHARM	CERN, Hamburg, Amsterdam, Rom, Moskau (Kernphysik-Kollaboration/nuclear physics collaboration)
CHARM	Chemistry at Harvard Molecular Mechanics (computer program)
CHARM	CH4 Airborne Remote Monitor(ing)
CHARM	Coherence-Advanced Regulation Mode (laser stabilization)
CHARM	Comprehensive Human Animation Resource Model
CHARMM	Chemistry at Harvard Macromolecular Mechanics
CHATT	Cryogenic Hypersonic Advanced Tank Technologies (EU project)
CHC	Chlorinated Hydrocarbon
CHDM	Cold + Hot Dark Matter (Kosmologie/cosmology)
CHE	Centrum für Hochschulentwicklung (Gütersloh)
ChEBI	Chemical Entities of Biological Interest (Datenbank/data bank)
CHEMFET	[FET mit chemischem Sensor als Gate-Elektrode/FET with chemical sensor as gate electrode]
CHEOPS	Characterizing Exoplanet Satellite (ESA, Start 2018)
CHEOPS	Chemistry of Ozone in the Polar Stratosphere
CHESS	Composition with Guarantees for High-Integrity Embedded Software Components Assembly (EU project)
CHESS	Cornell High Energy Synchrotron Source (Teilchenbeschleuniger/particle accelerator, Ithaca, NY, USA)
CHF	Congestive (or: Chronic) Heart Failure (Herzinsuffizienz)
CHG	Coherent Harmonic Generation
CHIEF	Combined Helmholtz Integral Equation Formulation
CHIL	Computers in the Human Interaction Loop (EU project)
CHILIAS	Children's Library – Information – Animation – Skills
CHIME	Canadian Hydrogen Intensity Mapping Experiment (astrophysics)
CHMM	Call Handling MultiMedia (Telekommunikation/telecommunication)
CHORUS	CERN Hybrid Oscillation Research Apparatus
CHORUS	Clearinghouse for the Open Research of the United States
CHP	Center for History of Physics (AIP)
CHP	Combined Heating and Power (Kraftwerk/power station)
CHRG	Concert Hall Research Group (Acoustics, USA)
CHRIS	Compact High Resolution Imaging Spectrometer
CHTM	Center for High Technology Materials (at UNM)
C/I	Carrier-to-Interference Performance (Telekommunikation/telecommunication)
CI	Cell Identity (Mobilfunk/mobile radio)
CI	Chemical Ionisation (Massenspektrometer/mass spectrometer)
CI	Cochlear Implant
CI	Computation Institute
CI	Elfenbeinküste/Ivory Coast (ISO 3166)
CIA	Central Intelligence Agency (oberste US-Geheimdienstbehörde)
CiA	CERIF in Action
CIAO	Collaborative Institutional Assessment of Open Access
CIAO	Coronographic Imager with Adaptive Optics
CIAT	Centre for Tropical Agriculture
CIC	Cascaded Integrator-Comb (Signalverarbeitung/signal processing)
CIC	Center for International Cooperation (Bonn, DE)
CIC	Charge Injection Calibration
CIC	Conseil Internationale de la Chasse et de la Conservation du Gibier
CIC	Coronographic Imaging Camera
CiC	Corporate Information and Computing Service
CICADA	Centre for Interdiciplinary Computational and Dynamical Analysis (University of Manchester, UK)
CICQ	Combined Input and Central Queuing (Telekommunikation/telecommunication)
CICS	Customer Information Control System (Telekommunikation/telecommunication)
CICYT	Comisión Interministerial de Ciencia y Tecnología (ES)
CID	Carrier Internetworking Division (Telekommunikation/telecommunication)
CID	Central Institute for the Deaf (Saint Louis, MO, USA)
CID	Charge-Injection Device
CID	Collision-Induced Dissociation
CIDL	Configuration Item Data List (Telekommunikation/telecommunication)
CIDR	Classless Interdomain Routing (Internet)
CIE	Commission Internationale d'Eclairage, International Commission of Illumination
CIEMAT	Centro de Investigaciones Energéticas, Medioambientales y Technológicas (ES)
CIERA	Center for Interdisciplinary Exploration and Research in Astrophysics (Northwestern University, USA)
CIESIN	Consortium for International Earth Science Information Network
CIF	Common Intermediate Format (Datennetz/data network)
C.I.F.	Cost, Insurance, Freight (Handelsverkehr/trade)
CIG	Cell Interconnection Gateway (Datennetz/data network)
CIGS	Copper Indium Gallium Selenium (or: Diselenide) (für Photovoltaik/for photovoltaics)
CII	Climate Impact Indicator
CILIP	Chartered Institute of Library and Information Professionals
CIM	Computer-integrated manufacturing
CIM	Corporate Information Management (USA)
CIME	Computer Integrated Manufacturing and Engineering
CIMSS	Center for Intelligent Material Systems and Structures (VPI & SU, Blacksburg, VA, USA)
CINEFOGO	Civil Society and New Forms of Governance in Europe
CINEMA	Center for Innovative and Emerging Materials (Johannes Gutenberg Universität Mainz, DE)
CINEMA	Cubesat for Ions, Neutrals, Electrons, and Magnetic Fields (microsatellite to study Earth's ring-current region)
CINR	Carrier-to-Interference plus Noise Ratio (Telekommunikation/telecommunication)
CINT	Center for Integrated Nanotechnology (LANL)
CIO	Centrum Integrierte Onkologie
CIO	Chief Information (or: Integration) Officer
CIO	Corporate Information Office
CIOE	China International Optoelectronics Expo
CIOQ	Combined Input- and Output-Queued (Telekommunikation/telecommunication)
CIP	Cataloging in Publication
CIP	Centre for Integrated Photonics (UK)
CIP	Channelopathy-Associated Insensitivity to Pain
CIP	Competitiveness and Innovation Framework Programme (EU)
CIP3	International Cooperation for Integration of Prepress, Press and Postpress (Druckindustrie/printing industry)
CIPM	Comité International des Poids et Mesures
CIPRNet	Critical Infrastructure Preparedness and Resilience Research Network (EU project)
CIPT	Computer Integrated Public Transportation
CIR	Carrier to Interference Ratio (Telekommunikation/telecommunication)
CIR	Channel Impulse Response
CIR	Circle (US Mail)
CIR	Committed Information Rate (Datennetz/data network)
CIR	Computer Integrated Railroading
CIR	Corotating Interaction Region (heliosphere)
CIR	Cylindrical Internal Reflection (ATR-Technik/ATR technology)
CIRA	Centro Italiano Ricerche Aerospaziali [Italian Aerospace Research Center] (Capua, IT)
CIR ELKE	Computer Integrated Railroading for Raising Efficiency in the Core Network (Eisenbahntechnik/railway technology)
CIRES	Cooperative Institute for Research in Environmental Sciences
CIRIT	Conseil Interdepartamental de Recerca i Innovació Tecnòlogica (ES)
CIRMMT	Centre for Interdisciplinary Research in Music Media and Technology (McGilll University, CA)
CIRS	Composite Infrared Spectrometer (Cassini)
CIS	Card Information Structure
CIS	Commonwealth (or: Confederation) of Independent States (= GUS)
CIS	Compensated Image System (adaptive Optik/adaptive optics)
CiS	Computing Infrastructure for Science (NRP)
CIS	Constant Initial-State (Photoemission)
CIS	Copper Indium Selenide, Kupferindiumdiselenid (für Photovoltaik/for photovoltaics)
CISAC	Committee on International Security and Arms Control (USA)
CISC	Complex Instruction Set Computer
CISCO	Cooled Infrared Spectrograph and Camera for OH-Airglow Suppression
CISE	Computer & Information Science & Engineering (Division of NSF, USA)
CiSE	Computing in Science and Engineering (AIP Magazine)
CISL	Computational and Information Systems Laboratory (at NCAR)
CISL	Contractual Index and Status List (Telekommunikation/telecommunication)
CISM	[International Centre for Mechanical Sciences], Udine, IT
CISPR	Comité International Spécial des Perturbations Radioélectriques (International Special Committee on Radio Interference, since 1933)
CIST	[Moskau-Fraunhofer] Institut für Chemische Technologie Pfinztal
CISTI	Canada Institute for Scientific and Technical Information
CIT	Carbon-Ion Therapy (cancer treatment)
CIT	Center for Information Technology (beim/at the NIH, USA)
CITA	Canadian Institute for Theoretical Astrophysics (Toronto, ON, CA)
CITEL	InterAmerican Telecom Commission (Telekommunikation/telecommunication)
CITES	Convention on International Trade in Endangered Species [of Wild Fauna and Flora]
	(Internationale Übereinkunft zum Handel mit bedrohten Arten)
CIVA	Charge-Induced Voltage Alteration
CJD	Creutzfeld-Jakob Disease
CJDA	Cambridge Journals Digital Archive
CJK	Creutzfeld-Jakob-Krankheit
CJO	Cambridge Journals Online (Cambridge University Press)
CJOm	Cambridge Journals Online Mobile (Cambridge University Press)
CJPL	China Jinping Deep Underground Laboratory
CJR	Central Japan Railway (Company)
CK	Clock (Telekommunikation/telecommunication)
CK	Cookinseln/Cook Islands (ISO 3166)
CKAN	Comprehensive Knowledge Archive Network
CKM	[Nicola] Cabbibo, [Makoto] Kobayashi, [Toshihide] Maskawa [Matrix] (Elementarteilchentheorie/elementary particle theory)
CKW	chlorierte Kohlenwasserstoffe
CL	Chile (ISO 3166)
Cl.	Classification (Patentliteratur/patent literature)
CL	Connectionless (Internet)
CL	Control(led) Load
CLA	Canadian Library Association
CLA	Center for Laser Applications (Plymouth, Michigan, USA)
CLA	Copyright Licensing Agency
CLAD	Chronic Lung Allograft Dysfunction
CLAF	Centro Latino-Americano de Fisica
CLAIRE	Clean Air Engine (Flugzeugmotor/aircraft engine)
CLARIN	[European] Common Language Resources and Technology Infrastructure
CLASSE	Cornell Laboratory for Accelerator[-Based] Sciences and Education
CLC	Cholesteric Liquid Crystal
C.L.E.	Club zur ländlichen Elektrifizierung
CLE	Customer Located Edge (or: Equipment) (Telekommunikation/telecommunication)
CLEAR	Center for Laser Experimental Astrophysics Research (University of Michigan, USA)
CLEAR	Coordinated Lysosomal Expression and Regulation, koordinierte lysosomale Expression und Regulation
CLEC	Competitive Local Exchange Carrier (Telekommunikation/telecommunication)
CLEO	Conference on Lasers and Electro-Optics
CLEOPATRA	Cloud Experiment Oberpfaffenhofen and Transport
CLF	Connectivity Session Location and Repository Function (Telekommunikation/telecommunication)
CLFA	Coopération Laser Franco-Allemande
CLI	Calling Line Identification (Telekommunikation/telecommunication)
CLI	Command Line Interface (Telekommunikation/telecommunication)
CLI	Coupling Loop Interference (Telekommunikation/telecommunication)
CLIA	Clinical Laboratory Improvement Amendments (US clinical testing guidelines)
CLIC	Compact Linear Collider (at CERN, planned)
CLIP	Calling Line Identification Presentation (Telekommunikation/telecommunication)
CLIP	Caribbean Large Igneous Province
CLL	Chronic Lymphocytic Leukemia, chronisch lymphatische Leukämie
CLO	Collateralized Loan Obligation (Börsenhandel/stock exchange)
CLONS	Closed Loop Neural Prosthesis for Vestibular Disorders
CLORA	Club des Organismes de Recherche Associés (FR)
CLOS	Common LISP Object System
CLP	[Dateinamenerweiterung: Graphikdatei/file name extension: graphic file]
CLR	Connection Loudness Rating (Telefon/telephone)
CLS	Call Server (Telekommunikation/telecommunication)
CLS	Canadian Light Source (Synchrotron-Strahlungsquelle beim CFI/synchrotron radiation source at the CFI)
CLS	Collecte localisation satellite
CLS	Confocal Laser Scanning (Microscope)
CLSM	Confocal Laser-Scanning Microscope (or: Microscopy)
CLT	Center for Laser Technology (Plymouth, MA, USA)
CLT	Central Limit Theorem
CL20	Hexanitro-Isowurtzitan (Sprengstoff/explosive)
CM	Kamerun/Cameroon (ISO 3166)
CM	Cochlear Microphonic (physiological acoustics)
CM	Contract Manufacturer
CMA	Constant Modulus Algorithm
CMAC	Cerebellar Model Arithmetic Computer
CMAM	[Fraunhofer-] Center for Manufacturing and Advanced Materials (Newark, DE, USA)
CMB	[Fraunhofer-] Center for Molecular Biotechnology (Newark, DE, USA)
CMB	Cosmic Microwave Background
CMBR	Cosmic Microwave Background Radiation
CMC	Carboxymethylcellulose
CMC	Ceramic Matrix Composites
CMC	Critical Micelle Concentration
CMCSN	Computational Materials and Chemistry Science Network (Brookhaven National Laboratory)
CMD	Carrier Multiplication Device (Telekommunikation/telecommunication)
CMD	Circuit Mode Data
CMD	Condensed Matter Division (EPS)
CMD	Craniomandibuläre Dysfunktion (des Kiefers)
CME	Condensed Matter Experimental [Physics]
CME	Coronal Mass Ejection (Sonnenphysik/solar physics)
CMEM	[International Conference on] Computational Methods and Experimental Measurements
CMet	Chartered Meteorologist (UK Royal Meteorological Society's program)
CMI	[Fraunhofer-] Center for Manufacturing Innovations (Boston, MA, USA)
CMI	Center for Materials Innovation (Washington University in St. Louis, MN, USA)
CMI	Critical Materials Institute (Ames Laboratory)
CMIP	Common Management Information Protocol (Telekommunikation/telecommunication)
CMIP5	Coupled Model Intercomparison Project Phase 5
CMIR	Center for Molecular Imaging Research (Harvard University, Boston, MA, USA)
CMIS	Common Management Information Services (Telekommunikation/telecommunication)
CMISE	Common Management Information Services (or: System) Element (Telekommunikation/telecommunication)
CML	[Fraunhofer-] Center für Maritime Logistik (und Dienstleistungen) (Hamburg)
CML	Chemical Markup Language
CML	Chronic Myelogenous Leukemia, chronische myeloische Leukämie
CML	Current Mode Logic (Schaltungstechnik/circuitry)
CMM	Capability Maturity Model
CMM	Chassis Management Modulus
CMM	Condensed Matter/Materials
CMM	Coordinate Measuring Machine
CMM	Corporate Mobility Manager (Telekommunikation/telecommunication)
CMMB	China Mobile Multimedia Broadcasting
CMMI	Capability Maturity Model Integration
CMMP	Condensed Matter and Materials Physics
CMN	Cerous Magnesium Nitrate (Temperaturnormal/temperature standard)
CMNS	Condensed-Matter Nuclear Science
CMO	Chief Medical Officer
CMO	Collateralized Mortgage Obligation (mit Hypotheken besichertes Wertpapier)
CMO	Complex Monolithic Optics
CMOS	Capacity-Coupled Metal-Oxide Silicon Device
CMOS	Complementary Metal-Oxide Semiconductor (Feldeffekt-Transistor/field effect transistor)
CMP	Chemical-Mechanical Polishing
CMP	Condensed Matter Physics
CMPB	Centre Molecular Physiology of the Brain, DFG Forschungszentrum Molekularphysiologie des Gehirns (Göttingen, DE, seit/since 2002)
CMR	Center for Materials Research
CMR	Colossal Magnetoresistance
CMRR	Common-Mode Rejection Ratio
CMRS	Climate Modelling and Research System
CMS	Cambridge Materials Selector [Database] (UK)
CMS	Cepstral Mean Subtraction (Sprachbearbeitung/speech processing)
CMS	Cluster Management System (Telekommunikation/telecommunication)
CMS	Compact Muon Solenoid (detector, LHC, CERN)
CMS	Condensed Matter Science
CMS	Condition Monitoring System
CMS	Content-Management System (Wissensmanagement)
CMS	Corporate Mobile Server (Telekommunikation/telecommunication)
CMSE	Computational Math Science and Engineering (Michigan State University, USA)
CM/SM	Communication/Service Module (Satellitentechnik/satellite technology)
CMSP	Condensed Matter & Statistical Physics (at ICTP, Trieste, IT)
CMST	Center for Marine Science and Technology (Perth, WA, AUS)
CMSU	Central Missouri State University (USA)
CMT	Condensed Matter Theory
CMT	Condition Monitoring System
CMT	Construction Materials Testing
CMT	Criticality Management Tool
CMTS	Cable Modem Termination System (Telekommunikation/telecommunication)
CMU	Carnegie Mellon University (Pittsburgh, PA, USA)
CMUT	Capacitive Micromachined Ultrasonic Transducer
CMYK	Cyan, Magenta, Yellow, Black (Bildverarbeitung/picture processing)
C/N	Carrier-to-Noise [Ratio]
CN	Core Network (Telekommunikation/telecommunication)
CN	Volksrepublik China/Peoples Republic of China (ISO 3166)
CNAM	Center for Nanophysics and Advanced Materials (UMD)
CNAM	Conservatoire National des Arts et Metiers (Paris, FR)
CNC	Colloidal Nanocrystal Cluster
CNC	Comisión Nacional de Communicaciones (AR) (Telekommunikation/telecommunication)
CNC	Computer Numerical Control (Werkzeugmaschinen/machine tools)
CN/CS	Core Network/Circuit Switched (Telekommunikation/telecommunication)
CNEL	Community Noise Equivalent Level
CNES	Centre National d'Etudes Spatiales (FR)
CNET	Centre National d'Etudes des Télécommunications
CNIL	Commission Nationale de l'Informatique et des Libertés
CNIO	Centro Nacional de Investigaciones Oncológicas [Spanish National Cancer Research Centre] (Madrid, ES)
CNM	Center for Nanoscale Materials (Argonne National Laboratory, USA)
CNM	Customer Network Management (Telekommunikation/telecommunication)
CNMPB	Zentrum für Mikroskopie im Nanometerbereich und Molekularphysiologie des Gehirns (Göttingen, seit November 2012)
CNMS	Center for Nanophase Materials Science (ORNL)
CNN	Convolutional Neural Network
CNOT	Conditioned NOT (logisches Gatter/logical gate)
CNP	Center for Neutrino Physics (Virginia Tech Department of Physics, USA)
CNPIEC	China National Publications Import and Export Group Corporation
CNPq	Conselho Nacional de Desenvolvimento Cientifico e Tecnológico (BR)
CNR	Carrier-to-Noise Ratio
CNR	Community Noise Rating
CNR	Consiglio Nazionale delle Ricerche (IT)
CNR	National Research Council (CA)
CNRM	Centre National de Recherches Météorologiques (Toulouse, FR)
CNRRI	China National Rice Research Institute
CNRS	Centre National de la Recherche Scientifique (FR)
CNS	Central Nervous System
CNS	Centre National d'Etudes Spatiales (FR)
CNS	Centro Nacional de Supercomputación (Barcelona, ES)
CNS	Communication, Navigation, Surveillance
CNS	Conseil National de la Science (FR)
CNS	Cosmological Natural Selection
CNSA	Chinese National Space Administration
CNSI	California Nanosystems Institute (UCSB and UCLA, CA, USA)
CNST	Center for Nanoscale Science & Technology (NIST)
CNT	Carbon Nanotube, Kohlenstoff-Nanoröhrchen
CNT	[Fraunhofer] Zentrum für Nanoelektronische Technologien (Dresden)
CNV	Choroidale Neovaskularisation (Augenkrankheit/eye disease)
CNY	Chinese Yuan
CO	Central Office (Rechnernetze/computer networks)
CO	Colorado (US-Staat/US state)
CO	Connection-Oriented (Internet)
CO	Kolumbien/Colombia (ISO 3166)
CoA	Certificate of Analysis
CoA	Core of Address (Telekommunikation/telecommunication)
Coadec	Coalition for a Digital Economy (scientific publishing)
COAF	Charity Open Access Fund
COAR	Confederation of Open Access Repositories
COASP	Conference on Open Access Scholarly Publishing
COB	Chip-On-Board
COBE	Cosmic Background Explorer (Satellit/satellite)
COBOL	Common Business-Oriented Language (Programmiersprache/programming language)
CoBRA	Computerized Bibliographic Record Actions
COC	Chain of Custody
CoC	Council on Competitiveness (USA)
COCOM	Coordinating Committee for Multilateral Export Controls
COCOSDA	International Coordinating Committee on Speech Databases and Speech I/O Systems Assessment
COD	Catastrophical Optical Damage
COD	Chemical Oxygen Demand
CODAC	Cosmic Dust Aggregation Experiment
CoDAS	Condensed Matter Direct Alerting Service (Datenbank/data bank)
CODATA	Committee on Data for Science and Technology (seit/since 1966)
Codec	Coder-Decoder
CODEST	Committee for the Development of European Science and Technology
CoDIS	Combined DNA Index System (zur Überführung von Kriminellen/for the conviction of criminals, USA)
CoDIT	[IEEE International Conference on] Control, Decision and Information Technologies
COE	Center of Excellence
COEHC	Coalition on Effective Hearing Conservation (USA)
COF	Columbus Orbit Facility (Weltraumlabor/space laboratory)
COFDM	Coded Orthogonal Frequency Division Multiplex(ing)
COFRET	Carbon Footprint of Freight Transport (EU project)
COFS	Control of Flexible Structures Program (NASA)
COGA	Collaborative Study on the Genetics of Alcoholism (USA)
COGANGS	Comparative Genomics and Next Generation Sequencing
CoGeNT	Coherent Germanium Neutrino Technology
COGNAC	Comparing Orders of Genes Using Novel Algorithms and High-Performance Computers (drug development)
COGR	Council on Governmental Relations (USA)
COGS	Cost of Goods Sold
COHERENCE	Cooperativity in Highly Excited Rydberg Ensembles – Control and Entanglement (EU project)
COICH	Channel Quality Indicator Channel (Telekommunikation/telecommunication)
COIL	Chemical Oxygen-Iodine Laser
COL	Construction and Operating License
COLCIENCIAS	Instituto Colombiano para el Desarrollo de la Ciencia y la Tecnología (CO)
COLD	Cryogenic Optical Localization in Three Dimensions
COLTRIMS	Cold Target Recoil Momentum Spectroscopy
COM	Calcium Oxalate Monohydrate (kidney stones, Nierensteine)
CoM	Center of Mass
com	[Commercial Organization] (Internet, USA)
COM	Committee on Minorities in Physics (APS)
COM	Component (or: Common) Object Model
COM	[Dateinamenerweiterung: ausführbares Programm/file name extension: executable program]
COMBO	Classifying Objects by Medium-Band Observations
COMD	Catastrophical Optical Mirror Damage
COMEDD	[Fraunhofer-] Center for Organic Materials and Electronic Devices Dresden (am/at the IPMS)
CoMet	Carbon Dioxide and Methane Mission for HALO (DLR project)
COMET	C++ OSI Management Extended Toolchain
COMETT	Community Program for Education and Training in Technology
COMEX	Commence Exercise (underwater noise monitoring standard)
COMICS	Cooled Mid-Infrared Camera and Spectrograph
COMIQ	Cold Molecular Ions at the Quantum Limit (European research network)
CoML	Census of Marine Life Initiative
COMPASS	Common Muon Proton Apparatus for Structure and Spectroscopy (CERN)
COMPENDEX	Computerized Engineering Index (Datenbank/data bank)
COMPETES	Creating Opportunities to Meaningfully Promote Excellence in Technology, Education, and Science (USA)
COMPLEX	Committee on Planetary and Lunar Exploration (National Research Council, USA)
COMPOSITE	Comparative Police Studies in the EU
COMPRES	Consortium for Material Properties Research in Earth Sciences (University of Illinois at Urbana-Champaign, USA)
COMPTECH	Consortium for Material Properties Research in Earth Sciences Technology Center (at Argonne National Laboratory, USA)
COMPTEL	Imaging Compton Telescope
COMSAT	Communications Satellite Corporation (USA)
COMSEC	Communication(s) Security
COMSTECH	Committee on Scientific and Technical Cooperation
COMT	Cathechol-O-Methyltransferase (Genetik/genetics)
CONAE	Comision Nacional de Actividades Espaciales (Argentina)
CONACYT	Consejo Nacional de Ciencia y Tecnología (MX)
ConCap	Constant Capacitance (Sensorik-Verfahren/sensoric method)
CONCERT	Contrial and Cirrus Experiment (DLR project)
CONICET	Consejo Nacional de Investigaciones Cientificas Técnicas (AR)
CONICYT	Comisión Nacional de Investigación Cientifica y Tecnológica (Chile)
CONIN	Cooperadora para la Nutrición Infantil (Kooperation für Kinderernährung, Peru)
CONNFFESSIT	Calculation of Non-Newtonian Flow: Finite Elements and Stochastic Simulation Technique
CONSIST	Comparison of Conservation Materials and Strategies for Sustainable Exploitation of Immovable Industrial Heritage Made of Iron and Steel
CONTRAIL	Comprehensive Observation Network for Trace Gases by Airliner
COO	Chief Operating Officer
COOMET	[Euro-Asian] Cooperation of National Meteorological Institutions
COORETEC	Kohlendioxid-Reduktions-Technologien (Kraftwerksforschungsprogramm des BMWi/German power plant research program)
COP	Chronisch obstruktive Lungenerkrankung
COP	Coefficient of Performance
COP	Colonizing Opportunistic Pathogens
COPASI	Complex Pathway Simulator
COPD	Chronic Obstructive Pulmonary Disease [Chronisch obstruktive Lungenerkrankung]
COPS	Common Open Policy Service (Telekommunikation/telecommunication)
COPS	Convective and Orographically-induced Precipitation Study (Meteorologie/meteorology)
COPUOS	Committee on the Peaceful Uses of Outer Space (UNO)
CoQuS	[Vienna Doctoral Program on] Complex Quantum Systems (AT)
COR	Cellular Open Resource
Coral	Collaboration of Oak Ridge, Argonne, and Lawrence Livermore (on supercomputing)
CORALUS	Corrosion of Alpha-Active Glass in Underground Storage Conditions (for nuclear waste)
CORBA	Common Object Request Broker Architecture (Telekommunikation/telecommunication)
CORDIS	Community Research and Development Information Service (EU)
CORINF	Correlated Multielectron Dynamics in Intense Light Fields (EU project)
CoRoT	Convection, Rotation and Planetary Transit (French satellite)
CORSAIR	Coprocessor RSA in a Rush
CORUS	Concept of Operation for European UTM Systems (EU project)
CORVETTE	Coordination and Validation of the Development of Advanced Transport Telematic Systems in the Alpine Area
COS	Carbon oxysulphide
COS	Centre for Open Science
CoS	Class(es) of Service(s)
COS	College of Optical Sciences (University of Arizona, USA)
COS	Core Operation Server (Telekommunikation/telecommunication)
COSEPUP	Committee on Science, Engineering, and Public Policy (National Academy, USA)
COSI	Center of Science and Industry (Columbus, OH, USA)
COSINE	Cooperation for Open Systems Interconnection in Europe
CoSMIC	Combinatorial Sciences and Materials Information Collaboratory
COSMO-ART	Consortium for Small Scale Modelling – Aerosols and Reactive Trace Gases
COSMO-CLM	Consortium for Small Scale Modelling – Climate Mode
COSMOS	Centre for Theoretical Cosmology (Stephen Hawking)
COSMOS	Cosmic Evolution Survey (Astrophysik/astrophysics)
COSPA	Collection of Stratospheric Aerosol Particles (DLR project)
COSPAR	Committee on Space Research
COST	[European] Cooperation in Science and Technology (ESF), Coopération Européenne dans la domaine de la recherche scientifique et technique
COSTECH	[Tanzania] Commission for Science and Technology
COSTEP	Comprehensive Suprathermal and Energetic Particle (an Bord von/aboard SOHO)
COSY	Cooler Synchrotron (Jülich, DE)
COSY	Correlation Spectroscopy
COT	Customer Operation Team
COTS	Components (or: Commercial, or: Commodity, or: Configurable) Off-The-Shelf (hardware or software)
COUPP	Chicagoland Observatory for Underground Particle Physics (neuartige Blasenkammer/novel bubble chamber, USA)
COV	Calculus of Variation
COVER	Covariance Equivalent Realization
CoW	Correlates of War (database on war)
COX	Cyclo-Oxygenase (ein Enzym/an enzyme)
CO2RRECT	CO2-Reaction Using Regenerative Energies and Catalytic Technologies
CP	Charge-Parity (symmetry)
CP	Conference Proceedings (NASA etc.)
CP	Connection Performer
CP	Content Provider (Telekommunikation/telecommunication)
CP	Contention Period (Telekommunikation/telecommunication)
CP	Customer Premises (Rechnernetz/computer network)
CP	Cyclic Prefix
CPA	Closest Point of Approach (ocean acoustics)
CPA	Coherent Perfect Absorber (optics, "antilaser")
CPA	Chirped Pulse Amplification (or: Amplifier) (optische Pulskompression/optical pulse compression)
CPACS	Common Parametric Aircraft Configuration Scheme
CPAN	Comprehensive Perl Archive Network
CPB	Constant Percentage Bandwidth (Spektralanalyse/frequency analysis)
CPB	Cooper-Pair Box (Supraleitung/superconductivity)
CPC	Central Processing Center (Galileo)
CPC	Collaborative Product Commerce
CPC	Compound Parabolic Concentrator (optische Linsen/optical lenses)
CPC	Comprehensive Pneumology Center (München, DE)
CPC	Continuous Packet Connectivity
CPC	Cooperative Patent Classification
CPCB	Central Pollution Control Board (Umweltbehörde in Indien/environmental authority in India)
CPCM	Mission Planning Control Center (Satellitensystem/satellite system)
CPCT	Center for Photoinduced Charge Transfer (Rochester, NY, USA)
CPD	Committee on the Present Danger
CPD	Continuous Professional Development
CPDD	Clinical Pharmacology in Drug Development (Journal)
CPDLC	Controller Pilot Data Link Communication (Telekommunikation/telecommunication)
CPE	Common Phase Error (Telekommunikation/telecommunication)
CPE	Customer Premise(s) Equipment (Internet)
CPERI	Chemical Process Engineering Research Institute (at CERTH, GR)
CPG	Computational Physics Group (EPS)
CPhA	Canadian Pharmacists Association
CPHY	Control Interface for Physical Layer (Telekommunikation/telecommunication)
CPI	Consumer Products Inventory
CPI	Continuous Process Improvement
CPICH	Common Pilot Channel (Telekommunikation/telecommunication)
CPJ	Canadian Pharmacists Journal
CPL	Call Processing Language (Telekommunikation/telecommunication)
CPL	Circularly Polarized Light
CPLD	Complex Programmable Logic Device
CPM	Cathode Pulse Memory
CPMG	[Herman] Carr, [Edward] Purcell, [Saul] Meiboom, [David] Gill (NMR pioneers)
CPMQ	Control Processor Module Queuing (Telekommunikation/telecommunication)
CPN	Customer Premises Network (Rechnernetz/computer network)
CPO	Coherent Population Oscillation (solid state physics)
CPP	Cell-Penetrating Peptide
CPP	Channel Plasmon Polariton (elektromagnetische Grenzflächenwellen/electromagnetic boundary layer waves)
CPP	Clean Power Plan
CPP	Current-Perpendicular-to-Plane (Festkörperphysik/solid state physics)
CPPM	Centre for Photonics and Photonic Materials (University of Bath, UK)
CPR	Cardiopulmonary Resuscitation (medicine)
CPRI	Common Public Radio Interface (Mobilfunk-Standard)
CPRIT	Cancer Prevention and Research Institute of Texas
CPRM	Copy Protection for Recordable Media (Telekommunikation/telecommunication)
CPS	Carte de Professionel de Santé
CPS	Chinese Physical Society
CPS	Concentrated Solar Power
CPS	Cyberphysical System, Cyber-Physisches System
CPS	The Czech Physial Society
CPSA	Copy Protection System Architecture (Telekommunikation/telecommunication)
CPT	Charge, Parity, Time (Invarianz gegen ...umkehr/invariance against ... reversal)
CPT	Clinical Pharmacology & Therapeutics (open-access journal)
CPTES	Center for Phononics and Thermal Energy Science (Tongji University, Shanghai, CN)
CPTWG	Copy Protection Technical Working Group (Telekommunikation/telecommunication)
CPU	Central Processing Unit (Computer)
CPV	Concentrator (or: Concentrated) Photovoltaic(s)
CPV	[International] Conference on Concentrator Photovoltaics
CPV	Continuous Process Verification
CPVS	Central Payload Video System
CPX	Close Proximity Method (Fahrzeug-Lärmmesstechnik/vehicle noise measurement)
CPX	Control Panel Extension
CQB	Center for Quantitative Biology (Peking University, CN)
CQI	Center for Quantum Information (IIIS, Tsinghua University, CN)
CQI	Channel Quality Indicator (or: Indication) (Telekommunikation/telecommunication)
CQIQC	Centre for Quantum Information and Quantum Control (University of Toronto, ON, CA)
CQM	Constituent Quark Model
CR	Cell Relay (Telekommunikation/telecommunication)
CR	Cosmic Ray(s)
CR	Costa Rica (ISO 3166)
CRAC	Computer Room Air Conditioning
CRADA	Cooperative Research and Development Agreement (or: Award) [with private companies] (USA, staatl. Förderungsprogramm)
CRAFT	Cooperative Research Action For Technology (EU)
CRAH	Computer Room Air Handlers
CRAHVI	Crashworthyness of Aircraft for High Velocity Impact
C-RAM	Counter-Rocket Artillery and Mortar
CRB	Cramér-Rao Bound
CRBT	Color Ring Back Tone (Telekommunikation/telecommunication)
CRC	Clinical Research Center
CRC	Collaborative Research Centre (DFG)
CRC	Corporate Research Center
CRC	Courant Research Centre
CRC	Cyclic Redundancy Check (Telekommunikation/telecommunication)
CRC-ACS	Cooperative Research Centre for Advanced Composite Structures (Australia)
CRCG	[Fraunhofer-] Center for Research in Computer Graphics (Providence, RI, USA)
CRD	Color Rendering Dictionary (Bildverarbeitung/picture processing)
CRDA	Cooperative Research and Development Agreement
CRDF	Civilian Research and Development Foundation (USA)
CRDS	Cavity Ring-Down Spectroscopy
CREAL	Centre for Research in Environmental Epidemiology (Barcelona, ES)
CREATIV	Creative Research Awards for Transformative Interdisciplinary Ventures (NSF, USA)
CREDO	Cluster of Research on Endocrine Disruption in Europe
CRENEL	Commission to Review the Effectiveness of the National Energy Laboratories (USA)
CREO	CO2 Reduction through Estimation Optimisation
CREOL	College of Optics and Photonics and Center for Research and Education in Optics and Lasers (UCF)
CRESST	Cryogenic Rare Event Search with Superconducting Thermometers
CREST	Center for Research in Extreme Scale Technologies
CREST	Comité de la Recherche Scientifique et Technique (EU)
CREST	Core Research for Evolutional Science and Technology (Japan)
CRESTA	Collaborative Research into Exascale Systemware, Tools and Applications (at EPCC)
CREW	Center for Research in Economics and Well-Being (Univesität Basel, CH)
CRF	Centro Ricerche Fiat (in Italy)
CRF	Corticotropin-Releasing Factor (ein Hormon/a hormone)
CRG	Center for Genomic Regulation (Barcelona, ES)
CRG	Collaborating Research Group
CRH	Corticotropin-(or: Cortisol-)Releasing Hormone
CRI	Colour-Rendering Index
CRIM	Centre de Recherche en Informatique de Montréal (CA)
CRIMSON	Crisis Management Simulation (Software package, 6 partners in 4 countries: EE, FR, IT, NL)
CRIS	Center for Research on Innovation and Society (Santa Barbara, CA, USA, und/and Berlin, DE)
CRIS	Current Research Information System
CRISM	Compact Reconnaissance Imaging Spectrometer for Mars
CRISP	Center for Research on Interface Structure and Phenomena (Yale, USA)
CRISP	Cluster of Research Infrastructures for Synergies in Physics
CRISP	Coarse-Grained Reconfigurable Instruction Set Processor (Computer)
CRISP	Corrected Illumination Scanning Probe (im Transmissionselektronenmikroskop/in a transmission electron microscope)
CRISP	Counter Rotating Integrated Shrouded Propfan (DLR-Projekt)
CRISPR	Clustered Regularly Interspaced Short Palindromic Repeats (Bakterien-Genetik/genetics of bacteria)
CRISTAL	Centre de Recherche en Informatique, Signal et Automatique (Lille, FR)
CRIStin	Current Research Information System in Norway
CRL	Certificate Revocation List (Telekommunikation/telecommunication)
C.R.L.	Companhia ein Responsibilidao Limitida (PT, ES)
CRLB	Cramér-Rao Lower Bound
CRM	Certified Reference Material
CRM	Common Research Model (NASA aircraft)
CRM	Contract Research Manager
CRM	Customer Relations (or: Relationship) Management (Telekommunikation/telecommunication)
CRN	Committee of a Regulatory Nature (EU)
CRNC	Controlling Radio Network Controller (Telekommunikation/telecommunication)
CRO	Clinical Research Organisation
CRO	Contract Research Organization
CroBIT	Cross Border Information Technology
C.R.O.P., CROP	Combined Regenerative Organic Food Production (DLR Köln, Lebenserhaltungssystem)
CROR	Counter Rotative Open Rotor (Flugzeugantrieb/aircraft propeller)
CRP	C-reaktives Protein, Cyclic-AMP Receptor Protein (AMP: Adenosine Monophosphate)
CRPL	Central Radio Propagation Laboratory (1946)
CRR	Cooperative Research Report
CRS	Common Reflection Surface (geological survey)
CRS	Complementary Resistive Switch
CRSQA	Council for Refractive Surgery Quality Assurance (Augenchirurgie/eye surgery, USA)
CRT	Cathode Ray Tube
CRT	Conformal Radio Therapy
CRT	Cosmic-Ray-Tracking Project
CRTD	Center for Regenerative Therapies Dresden (DE)
CRU	Climatic Research Unit (University of East Anglia (UK) et al.)
CRuSR	Commercial Reusable Suborbital Research (NASA program)
CRV	Crew Return Vehicle (Raumfahrt/spacecraft)
CR/W	Controller Read/Write
CRYRING	Cryebis Storage Ring (Stockholm, SE)
CS	Call Server (Telekommunikation/telecommunication)
CS	Central Secretariat (NIST)
CS	Circuit-Switched (Telekommunikation/telecommunication)
CS	Commercial Services (Galileo)
CS	Communications Satellite
CS	Serbien und Montenegro/Serbia and Montenegro (ISO 3166)
CS	Tschechoslowakei/Czechoslovakia (ISO 3166 bis/until 1993)
CSA	Canadian Space Agency
CSA	Canadian Standards Association
CSA	Carrier Serving Area (Telekommunikation/telecommunication)
CSA	Cryogenic Society of America
CSAC	Chip Scale Atomic Clock
CSAGI	Comité Spécial de l'Année Géophysique Internationale
CSAIL	Computer Science and Artificial Intelligence Laboratory (MIT)
CSAR	Cryogenic Solar Absolute Radiometer
CSB	Center for Systems Biology at Dresden (DE)
CSB	Centrum für Schlaganfall-Forschung Berlin (DE)
CSB	Charge Symmetry Breaking (Elementarteilchenphysik/elementary particle physics)
CSBD	Center of Systems Biology at Dresden (DE)
CSBU	Communication Services Business Unit (Telekommunikation/telecommunication)
CSC	Call and Session Controller (Telekommunikation/telecommunication)
CSC	Center for Scientific Computing
CSC	China Scholarsip Council
CSCC	Concurrent Supercomputing Consortium (USA)
CSCF	Call State (or: Session) Control Function (Telekommunikation/telecommunication)
CSCL	Computer-Supported Cooperative (or: Collaborative) Learning
CSCS	Center for the Study of Complex Systems (University of Michigan, USA)
CSCS/SCSC	Swiss Centre for Scientific Computing (supercomputing centre)
CSCW	Computer Supported Cooperative (or: Collaborative) Work(ing)
CSD	Cambridge Structural Database (Chemie/chemistry)
CSD	Chemical Solution Deposition
CSD	Christopher Street Day
CSD	Circuit Switched Data (Telekommunikation/telecommunication)
CSDP	Customer Specific Development Process
CSE	[Fraunhofer-] Center for Sustainable Energy Systems (Cambridge, MA, USA)
CSE, CS&E	Computational Science and Engineering
CSE	Council of Science Editors
CSE	Critical Systems Engineering (DLR project)
CSE	Cystathionin-gamma-Lyase (ein Enzym)
CSEG	Canadian Society of Exploration Geophysicists
CSELT	Centro studi e laboratori telecomunicazioni (IT)
CSEM	Centre Suisse d'Electronique et de Microtechnique (Zürich, CH)
CSF	Carribean Science Foundation
CSF	Colony Stimulatingf Factor (a protein)
CSF	Compagnie Générale de Télégraphie Sans Fil
CSG	Centre Spatial Guyanais (Europäischer Weltraumbahnhof, Kourou, GY)
CSI	Channel State Information (Telekommunikation/telecommunication)
CSI	Control-Structure Interaction
CSIR	Council for Scientific and Industrial Research (Stellenbosch, Südafrika/South Africa)
CSIRO	Commonwealth Scientific and Industrial Research Organisation (Canberra, AU)
CSIS	Center for Strategic and International Studies (Washington, DC, USA)
CSL	Chemical Safety Library
CSLI	Center for the Study of Language and Information (Stanford, CA, USA)
CSLP	[Fraunhofer-] Center for Surface and Laser Processing (Peoria, IL, USA)
CSM	Central Strength Member (Rechnernetz/computer network)
CSM	Communication Session Manager
CSM	Component and Supplier Management
CSM	Connection Session Management
CSM	Customer Service Management (Telekommunikation/telecommunication)
CSMA/CA	Carrier Sense Multiple Access/Collision Avoidance (Datennetze/data networks)
CSMA/CD	Carrier Sense Multiple Access/Collision Detection (Datennetze/data networks)
CSMBP	Center for Soft Matter and Biological Physics (Virginia Tech)
CSME	College of Science and Education (University of Utah, USA)
CSN	Circuit Switched Network (Telekommunikation/telecommunication)
CSNS	China Spallation Neutron Source (geplant für/planned for 2013)
CSO	Chief Scientific Officer
CSO	Composite Second Order (Verzerrung 2. Ordnung/second order distortion)
CSP	Center for the Study of the Presidency (USA)
CSP	[Fraunhofer-] Center für Silizium-Photovoltaik (Halle/Saale)
CSP	Charge Sensitive Preamplifier
CSP	Chip-Scale Package (gedruckte Schaltung/printed circuit)
CSP	Concentrated (or: Concentrating) Solar Power (Kraftwerk, Parabolspiegelsystem/power plant, parabolic mirror facilities)
CSP	Constraint Satisfaction Problem
CSPF	Constraint Shortest Path First (Telekommunikation/telecommunication)
CSPI	Center for Science in the Public Interest (Washington, DC, USA)
CSR	Cell Switch Router (Telekommunikation/telecommunication)
CSR	Corporate Social Responsibility
CSR	Customer Service Representatives (Telekommunikation/telecommunication)
CSRC	Computational Science Research Center (Uiversity of Beijing, CN)
CSRZ	Carrier-Suppressed Return-to-Zero (optische Telekommunikation/optical telecommunication)
CSS	Cascading Style Sheets (zur Programmierung von Webseiten)
CSS	Catalina Sky Survey (astronomy)
CSS	Committee of Soviet Scientists [for the Defense of Peace Against the Nuclear Threat]
CSS	Content Scramble (or: Scrambling) System (Verschlüsselungssystem)
CSS	Cyclic Steam Stimulation (Ölsanderschließung/oilsand exploration)
CSSME	Center for Secondary Science and Math Education (Northern Illinois University, USA)
CST	Concentrated Solar Thermal (Kraftwerk/power plant)
CSTA	Computer Supported Telecommunication(s) (or: Telephony) Application (Telekommunikation/telecommunication)
CSTAR	Chinese Small Telescope Array (in Antarctica)
CSTI	Civil Space Technology Initiative (NASA)
CSTN	Colour Super-Twisted Nematic (LCD)
CSTR	Center for Solar–Terrestrial Research (NJIT)
CSTR	Centre for Speech Technology Research (University of Edinburgh, UK)
CSU	Colorado State University (USA)
CSUDH	California Sate University Dominguez Hills
CSULB	California State University Long Beach (USA)
CSUN	California State University Northridge (USA)
CSV	Comma Separated Value
CSVE	Chinese Society for Vibration Engineering
CSW	Core Switch
CSWP	Committee on the Status of Women in Physics (APS)
CT	Colour Temperature
CT	Computed Tomography, Computer-Tomographie (Röntgentechnik/X-ray technology)
CT	Connecticut (US-Staat/US state)
CT	Cordless Telecommunications
CT	Court (US Mail)
CTA	Chemisch-technische(r) Assistent(in)
CTA	Cherenkov Telescope Array
CTAN	Comprehensive TeX Archive Network
CTB	Composite Triple Beat (Verzerrung 3. Ordnung/third order distortion)
CTBT	Comprehensive Test Ban Treaty (Atomwaffenteststoppvertrag 1996)
CTBTO	Comprehensive Test Ban Treaty Organisation (Wien, AT)
CTC	Central Traffic Control (Eisenbahntechnik/railway technology)
CTC	Circulating Tumor Cell
CTC	Convolutional Turbo Code (Telekommunikation/telecommunication)
CTC	Crew Training Complex (DLR, Köln, Porz-Wahnheide, DE)
CTCSS	Continuous Tone Coded Squelsh System (Mobilfunk/mobile radio)
CTD	Coated (optische Linsen/optical lenses)
CTE	Coefficient of Thermal Expansion
CTEPH	chronisch-thrombo-embolischer Lungenhochdruck
CTH	Chalmers Tekniske Högskola (Göteborg, SE)
CTI	Colour Transient Improvement (Konturverbesserung beim TV-Bild/TV picture contour improvement)
CTI	Computer-Telephony Integration (Telekommunikation/telecommunication)
CTI	Computer Telephony Interface (Telekommunikation/telecommunication)
CTI	Critical Technologies Institute (USA)
CTIA	Cellular Telecommunications Industry Association
CTIA	Charge Trans-Impedance Amplifier
CTIM	Continuous-Flow Time-Integrated Method (road noise measurement)
CTIO	Cerro Tololo Inter-American Observatory (La Serena, Chile)
CTIR	Center for Intelligent Transportation Research (Ohio State University, USA)
CTL	Coal to Liquid (synthetischer Kraftstoff/synthetic fuel)
CTL	Community Tolerance Level
CTL	Continuously Tunable Laser
CTMS	Clinical Trial Management System
CTO	Chief Technical Officer
CTO	Command Transfer Object
CTO	Configure to Order
CTP	Computer-to-Plate, Computer-to-Press, Computer-to-Paper (Drucktechnik/printing technology)
CTP	Cytisintriphosphat
CTR	Center (US Mail)
CTR	Common Technical Regulation(s)
CTR	Cooperative Threat Reduction
CTRANC	Crosstalk-Resistant Adaptive Noise Canceller
CTRW	Continuos-Time Random Walk (diffusion model)
CTS	Clear to Send (Telekommunikation/telecommunication)
CTS	Compliance Test Specification
CTS	Concept to Speech (Sprachsynthese/speech synthesis)
CTSEE	[Komitee für Toxikologie, Ökotoxikologie und Umwelt] (Europäische Kommission)
CTU	Control Tower Unit
CTU	Czech Technical University (Prague)
CTV	Crew Transfer (or: Transport) Vehicle (Raumfahrt/spacecraft)
CTW	[IEEE] Communication Theory Workshop
CTWG	Cook Stove Interagency Working Group
CU	Central Unit
CU	Control Unit
CU	Kuba/Cuba (ISO 3166)
CUA	Center for Ultracold Atoms (MIT-Harvard University program, USA)
cuagn	hope to see you again (Amateurfunkverkehr/amateur radio)
CUAHSI	Consortium of Universities for the Advancement of Hydrologic Science (USA)
CUBED	Center for Ultralow Background Experiments at DUSEL
CUDOS	Centre for Ultra-High Bandwidth Devices for Optical Systems (AU)
CUDWR	Columbia University Division of War Research (New London, CT, USA, established 1941)
CUE	Carbon Usage Effectiveness
CUF	Channel Utilization Factor
CUFCT	Cooper Union Federation of College Teachers (New York City, USA)
CUG	Closed User Group (Telekommunikation/telecommunication)
CUHK	Chinese University of Hong Kong
CUI	Centre for Ultrafast Imaging (University of Hamburg, DE)
CUL	Computer-unterstütztes Lernen
CUMC	Columbia University Medical Center (New York, USA)
CUNY	City University of New York
CUORE	Cryogenic Underground Observatory for Rare Events (Gran Sasso National Laboratory, Italy)
CUP	Cambridge University Press
CUP	Center for Underground Physics (Daejeon, KR)
CUPLE	Comprehensive Unified Physics Learning Environment
CUR	Council for Undergraduate Research
CUSP	Center for Urban Science and Progress (NYU)
Cuspea	China-US Physics Examination and Application Program
CUTCP	Clarkson University-TCP (Rechnernetz/computer network)
CUTE	Clarkson University Terminal Emulator (Rechnernetz/computer network)
CUTE	Clean Urban Transport for Europe (Busse mit Wasserstoffantrieb/hydrogen-powered buses)
CUWiP	Conference for Undergraduate Women in Physics
CV	Card Verifiable
CV	Cartellverband [der Katholischen Deutschen Studentenverbindungen]
CV	Connection Verification (Telekommunikation/telecommunication)
CV	Kapverdische Inseln/Cape Verde (ISO 3166)
CVA	Credit Value Adjustment (Bankgeschäfte)
CVC	Common Vision Concept
CVB	Constrained Vapor Bubble
CVC	Common Vision Concept
CVCP	Committee of Vice-Chancellors and Principals (UK)
CVD	Cardio-Vascular Disease, Kardiovaskuläre Erkrankung
CVD	Chemical Vapor Deposition
CVE	Collaborative Virtual Environment
CVI	chronisch-venöse Insuffizienz
C-VLAN	Customer VLAN (Telekommunikation/telecommunication)
CVM	Control Volume Meshing
CVSD	Continuously Variable Slope Delta (modulation)
CVT	Continuously Variable Transmission (Kfz-Getriebe/vehicle gear)
CVVL	Continuous Variable Valve Lift (Kfz-Motor/automotive Engine)
CW	Clockwise
CW	Continuous Wave
CWD	Concealed Weapon Detection (USA)
CWDM	Coarse Wavelength Division Multiplexing (Telekommunikation/telecommunication)
CWMT	[Fraunhofer-] Center für Windenergie und Meerestechnik (Bremerhaven)
CWRU	Case Western Reserve University (Cleveland, OH, USA)
CWP	Controller Working Position (Flugsicherung/flight control)
CWU	Central Washington University (USA)
CWÜ	Chemiewaffenübereinkommen (1997, 65 Mitgliedsstaaten)
CX	Weihnachtsinsel/Christmas Island (ISO 3166)
CXC	Chandra X-Ray Center (NASA, USA)
CXO	Chandra X-Ray Observatory (Röntgensatellit/X-ray satellite)
CY	Zypern/Cyprus (ISO 3166)
CYCA	Chinese Youth Conference on Acoustics
CZ	Convergence Zone (Sonarortung/sonar ranging)
CZ	Tschechien/Czech Republik (ISO 3166)
CZCS	Coastal Zone Color Scanning (of the ocean)
CZM	Cohesive Zone Method
CZT	Chirp z-Transform
C²A²S²E	Center for Computer Applications in Aerospace Science and Engineering (DLR, Braunschweig, DE)
C2B	Customer-to-Business
C2C	Customer-to-Customer
C2ES	Center for Climate and Energy Solutions
C3	Command, Control and Communication (System)
C3	Cleaved-Coupled Cavity (Laser)
C3I	Command, Control, Communications, Intelligence (militärisch/military)