| DRM | Diamond and Related Materials | In English | → Serial publications, periodicals → 62039 |
| DRO | Dielectric Resonator Oscillator | In English | → Physics → Electrical engineering |
| DRRT | Délégué(e) Régional(e) à la Recherche et à la Technologie | In French | → Research policy → Engineering, technology |
| DRRT | Délégation Régionale à la Recherche et à la Technologie | In French | → Research policy → Public administration, government → Engineering, technology |
| DRS | Data Relay Satellite | In English | → Data → Spaceflight engineering, astronautics |
| DRS | Data Relay Station | In English | → Data → Telecommunications |
| DRSS | Data Relay Satellite System | In English | → Data → Spaceflight engineering, astronautics |
| DRZE | Deutsches Referenzzentrum für Ethik in den Biowissenschaften (www.drze.de) | In German | → Ethics → Biological sciences → Medicine |
| DS3 | Deep-Space Surveillance System | In English | → Spaceflight engineering, astronautics |
| DSA | Defense Supply Agency | In English | → 355 → Military engineering |
| DSARC | Defense System Acquisition Review Committee | In English | → Military engineering |
| DSARC | Defense Systems Acquisition Review Council | In English | → Military engineering |
| DSAT | Defensive Satellite | In English | → Military engineering → Spaceflight engineering, astronautics |
| DSC | Dedicated Signal Conditioner | In English | → Telecommunications |
| DSCP | Differentiated Services Code Point | In English | → Networks, communication → Telecommunications |
| DSCR | Direction de la Sécurité et de la Circulation Routières | In French | → Transport and postal services |
| DSCR | Direction de la Sécurité et de la Circulation Routière | In French | → Transport and postal services |
| DSCS | Defense Support Communication Satellite | In English | → Military engineering → Spaceflight engineering, astronautics |
| DSCS | Defense Satellite Communications System | In English | → Military engineering → Spaceflight engineering, astronautics |
| DSD | Defensive Shields Demonstration | In English | → Military engineering |
| DSE | Distributed Systems Engineering | In English | → Serial publications, periodicals → Engineering, technology |
| DSEA | Data Storage Electronics Assembly | In English | → Data → Electronics |
| DSI | Direction des Systèmes d'Information | In French | → Computer science → Telecommunications |
| DSIF | Deep-Space Instrumentation Facility | In English | → Spaceflight engineering, astronautics |
| DSIFE | Deep-Space Instrumentation Facility Equipment | In English | → Spaceflight engineering, astronautics |
| DSIN | Direction de la Sûreté des Installations Nucléaires | In French | → Nuclear technology |
| DSLAM | Digital Subscriber Line Access Multiplexer | In English | → Networks, communication → Telecommunications |
| DSN | Deep-Space Network | In English | → Spaceflight engineering, astronautics |
| DSP | Digital Signal Processing | In English | → Computer-based techniques → Telecommunications |
| DSP | Digital Signal Processor | In English | → Electronics |
| DSRMC | Defense Systems Review Military Communications | In English | → Serial publications, periodicals → 355 → Military engineering |
| DSS | Deep Space Station | In English | → Astronomy → Spaceflight engineering, astronautics |
| DSS | Deep-Space Station | In English | → Spaceflight engineering, astronautics |
| DSS | Dengue Shock Syndrom | In English | → Infectious diseases |
| DSSC | Deep Space Station Complex | In English | → Astronomy → Spaceflight engineering, astronautics |
| DSV | Direction des Services Vétérinaires | In French | → Central administration → Veterinary medicine |
| DT | Diretoria Técnica | In Portuguese | → Engineering, technology |
| DT&E | Development, Test, and Evaluation | In English | → Engineering, technology |
| DTA | Diplôme de Technologie Approfondie | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| DTA | Digital Terminals & Access | In English | → Human-computer interaction → Telecommunications |
| DTAT | Direction Technique des Armements Terrestres | In French | → Military engineering |
| DTC | Direct Torque Control | In English | → Electrical engineering |
| DTC | Division Téléconduite des Réseaux | In French | → Energy economics → Electrical engineering |
| DTCA | Direction Technique des Constructions Aéronautiques | In French | → Aeronautics, aircraft |
| DTCN | Direction Technique des Constructions Navales | In French | → Vehicle engineering |
| DTE | Data Terminal Equipment | In English | → Data → Telecommunications |
| DTE | Data Transmission Equipment | In English | → Data → Telecommunications |
| DTE | Digital Television Equipment | In English | → Telecommunications |
| DTH | Delayed-Type Hypersensitivity | In English | → Pathology → Ophtalmology |
| DTI | Direction des Transmissions et de l'Informatique | In French | → Telecommunications → Computer science |
| DTI | Departement of Trade and Industry | In English | → Telecommunications → Trade → Industry, industrial policy |
| DTIC | Defense Technical Information Center | In English | → Military engineering |
| DTR | Draft Technical Report | In English | → Engineering, technology |
| DTS | Defensive Technologies Study | In English | → Military engineering |
| DTS | Defense Technology Study | In English | → Military engineering |
| DTS | Data Transmission System | In English | → Data → Telecommunications |
| DTSL | Data Transfer Systems Laboratory | In English | → Research institutes → Data → Telecommunications |
| DTST | Defense Technology Study Team | In English | → Military engineering |
| DTST | Defensive Technologies Study Team | In English | → Military engineering |
| DTT | Direction des Transports Terrestres | In French | → Transport and postal services |
| DTTP | Domestic Technology Transfer Program | In English | → Engineering, technology → Industrial property |
| DTV | Developmental Test Vehicle | In English | → Vehicle engineering |
| DTV&I | Development, Test, Verification, and Integration | In English | → Quality management → Engineering, technology |
| DTVC | Digital Transmission and Verification Converter | In English | → Computer science → Telecommunications |
| DTVC | Data Transmission and Verification Converter | In English | → Data → Telecommunications |
| DUETI | Diplôme d'Université d'Études Technologiques Internationales | In French | → Higher education, universities → Engineering, technology |
| DUT | Device Under Test | In English | → Electronics |
| DUT | Diplôme Universitaire de Technologie | In French | → Higher education, universities → Engineering, technology |
| DUTA | Diplôme Universitaire de Technologie Approfondie | In French | → Higher education, universities → Engineering, technology |
| DUW | Dago Urban Wear | In English | → Textile industry |
| DVB | Digital Video Broadcasting | In English | → Telecommunications |
| DVB-C | Digital Video Broadcasting - Cable | In English | → Telecommunications |
| DVB-H | Digital Video Broadcasting - Handheld | In English | → Telecommunications |
| DVB-S | Digital Video Broadcasting - Satellite | In English | → Spaceflight engineering, astronautics → Telecommunications |
| DVB-T | Digital Video Broadcasting - Terrestrial | In English | → Telecommunications |
| DVD | Digital Versatile Disc | In English | → Cinema, movies → Telecommunications |
| DVFV | Danmarks Fødevareforskning | In Danish | → Food technology |
| DVGW | Deutsche Vereinigung des Gas- und Wasserfaches (www.dvgw.de) | In German | → Organizations and associations → Energy economics → Environmental technology, water supply, waste management |
| DvI | Dynamisering van Innovatie | In Dutch | → Engineering, technology |
| DVIDS | Digital Video and Imagery Distribution System | In English | → Telecommunications |
| DVL | Deutsche Versuchsanstalt für Luftfahrt | In German | → Aerodynamics → Aeronautics, aircraft |
| DVM | Digital Voltmeter | In English | → Electrical engineering |
| DVS | Digital Voice System | In English | → Telecommunications |
| DVT | Deep Vein Thrombosis | In English | → Blood and circulatory system → Pathology |
| DVT | Deutscher Fachverband für Verhaltenstherapie | In German | → Organizations and associations → Psychology → Neurology |
| DVT | Deutscher Verband Tiernahrung | In German | → Organizations and associations → Agricultural sciences |
| DWDM | Dense Wavelength Division Multiplexing | In English | → Networks, communication → Telecommunications |
| DWR | Druckwasserreaktor = PWR | Pressurized Water Reactor | In English = REP | Réacteur à Eau Pressurisée | In French |
In German | → Nuclear technology |
| DWR | Dienst Waterbeheer en Riolering | In Dutch | → Environmental technology, water supply, waste management |
| DWS | Disaster Warning Satellite | In English | → Spaceflight engineering, astronautics |
| E&D | Engineering and Development | In English | → Engineering, technology |
| E&DSG | Electro-Optical and Data Systems Group | In English | → Data → Electrical engineering |
| E&E | Elektromashinostroenie i Elektrooborudovanie | In Russian | → Serial publications, periodicals → Mechanical engineering |
| E&M | Elektrotechnik und Maschinenbau | In German | → Serial publications, periodicals → Mechanical engineering |
| E&M | Electrical and Mechanical | In English | → Mechanical engineering → Electrical engineering |
| E&O | Engineering and Operations | In English | → Engineering, technology |
| E-Core | European Construction Research Network | In English | → Organizations and associations → Building |
| E-MEDINE-MD | Euro-MEditerranean Digital-libraries INtelligent E-learning via Mobile Device | In English | → Libraries → Education → Telecommunications |
| E2A | EnergieEffizienzAgentur Rhein-Neckar-Dreick | In German | → Energy economics |
| E3A | ENSAM, ESTP, ÉCRIN, Archimède | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| E4A | ENSAIS, ENSAM, ESTP, ÉCRIN, Archimède | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| E@I | Esperanto ĉe Interreto | In Esperanto | → Networks, communication → Organizations and associations → Telecommunications |
| EA | Electronics Assembly | In English | → Electronics |
| EAACI | European Academy of Allergology and Clinical Immunology | In English | → Academies → Immunology and allergy |
| EAC | European Aminocarboxylates Committee | In English | → Organizations and associations → Chemicals → Pharmacology, toxicology |
| EACD | European Academy of Childhood Disability (www.eacd.org) | In English | → Academies → Pediatry |
| EACEM | European Association of Consumer Electronics Manufacturers | In English | → Associations → Electronics |
| EACH | European Alzheimer Clearing House | In English | → Neurology |
| EADO | European Association of Dermato-Oncology | In English | → Associations → Dermatology → Oncology |
| EAF | Engineering Analysis Facility | In English | → Engineering, technology |
| EAF | Engineering Analysis Function | In English | → Engineering, technology |
| EAFA | European Aluminium Foil Association | In English | → Associations → Metallurgy |
| EAFPS | European Academy of Facial Plastic Surgery | In German | → Academies → Plastic surgery |
| EAFRD | European Agricultural Fund for Rural Development = FEADER | Fonds Européen Agricol pour le Développement Rural | In French = FEADER | Fondo Europeo Agrícola de Desarrollo Rural | In Spanish = ELFUL | Europæiske Landbrugsfond for Udvikling af Landdistrikterne | In Danish = ELER | Europäischer Landwirtschaftsfonds für die Entwicklung des ländlichen Raums | In German = ΕΓΤΑΑ | Ευρωπαϊκό Γεωργικό Ταμείο Αγροτικής Ανάπτυξης | In Greek = FEASR | Fondo Europeo Agricolo per lo Sviluppo Rurale | In Italian = ELFPO | Europees Landbouwfonds voor Plattelandsontwikkeling | In Dutch = FEADER | Fundo Europeu Agrícola de Desenvolvimento Rural | In Portuguese = EJFLU | Europeiska jordbruksfonden för landsbygdsutveckling | In Swedish |
In English | → Agricultural sciences |
| EAGFL | Europäischer Ausrichtungs- und Garantiefonds für Landwirtschaft = FEOGA | Fonds Européen d'Orientation et de Garantie Agricole | In French = FEAOG | Fondo Europeo Agricolo di Orientamento e di Garanzia | In Italian = EAGGF | European Agriculture Guidance and Guarantee Funds | In English = EFOiGR | Europejski Fundusz Orientacji i Gwarancji Rolnej | In Polish = EUGFJ | Europeiska utvecklings- och garantifonden för jordbruket | In Swedish |
In German | → International relations → European Union → Agricultural sciences |
| EAGGF | European Agriculture Guidance and Guarantee Funds = EAGFL, FEOGA, FEAOG, EFOiGR, EUGFJ (look above) |
In English | → International relations → European Union → Agricultural sciences |
| EAGLES | European Action on Global Life Sciences | In English | → Biological sciences → Biotechnology → Medicine → European Union |
| EAI | Electronics Associates, Incorporated | In English | → Electronics |
| EALA | European Air Law Association | In English | → Associations → Law, jurisprudence → Aeronautics, aircraft → 65 |
| EAM | Electrical Accounting Machine | In English | → Electrical engineering |
| EANA | Energia Atomikoaren Nazioarteko Agentzia (www.iaea.org) = IAAE | Internacia Agentejo pri Atom-Energio | In Esperanto = IAEA | International Atomic Energy Agency | In English = AIEA | Agence Internationale de l'Énergie Atomique | In French = AIEA | Agenţia Internaţională pentru Energie Atomică | In Romanian = МААЕ | Международна агенция за атомна енергия | In Bulgarian = AIEA | Agència Internacional de l'Energia Atòmica | In Catalan = MAAE | Mezinárodní agentura pro atomovou energii | In Czech = IAEA | Det Internationale Atomenergiagentur | In Danish = IAEO | Internationale Atomenergieorganisation | In German = OIEA | Organismo Internacional de Energía Atómica | In Spanish = סבא"א | הסוכנות הבינלאומית לאנרגיה אטומית | In Hebrew = IAEA | International Atomenergie Agence | In Letzeburgesh = AIEA | Agenzia Internazionale per l'Energia Atomica | In Italian = IAEA | अंतर्राष्ट्रीय परमाणु ऊर्जा अधिकरण | In Hindi = MAAE | Меѓународна агенција за атомска енергија | In Macedonian = МАГАТЭ | Международное агентство по атомной энергии | In Russian = AIEA | Agência Internacional de Energia Atómica | In Portuguese = MAEA | Międzynarodowa Agencja Energii Atomowej | In Polish = МАГАТЕ | Міжнародне агентство з атомної енергії | In Ukrainian = UAEA | Uluslararası Atom Enerji Ajansı | In Turkish = IAEA | สำนักงานพลังงานปรมาณูระหว่างประเทศ | In Thai |
In Basque | → International relations → Energy economics → Nuclear technology |
| EAPB | Europos anglių ir plieno bendrija = EKSF | Europæiske Kul- og Stålfællesskab | In Danish = ESUO | Evropské společenství uhlí a oceli | In Czech = EZUČ | Europska zajednica za ugljen i čelik | In Croatian = CECA | Comunidad Europea del Carbón y del Acero | In Spanish = CECA | Communauté Européenne du Charbon et de l'Acier | In French = EGKS | Europese Gemêenschap voo Kooln en Stoal | VLS = ECSC | European Coal and Steel Community | In English = ЕОВС | Европейската общност за въглища и стомана | In Bulgarian = CECA | Comunitat Europea del Carbó i de l'Acer | In Catalan = EGKS | Europäische Gemeinschaft für Kohle und Stahl | In German = CECA | Comunidade Europea do Carbón e do Aceiro | In Galician = CECA | Comunità Europea del Carbone e dell'Acciaio | In Italian = EWWiS | Europejska Wspólnota Węgla i Stali | In Polish = CECA | Comunautat Europèa del Carbon e de l'Acièr | In Occitan = EKSF | Det europeiske kull- og stålfellesskap | In Norwegian = EGKS | Europese Gemeenschap voor Kolen en Staal | In Dutch = ESZAK | Európai Szén- és Acélközösség | In Hungarian = CECA | Comunidade Europeia do Carvão e do Aço | In Portuguese = CECO | Comunitatea Europeană a Cărbunelui şi Oţelului | In Romanian = ЕОУС | Европейское объединение угля и стали | In Russian = ESUO | Európske spoločenstvo pre uhlie a ocel | In Slovak = EHYT | Euroopan hiili- ja teräsyhteisö | In Finnish = EKSG | Europeiska kol- och stålgemenskapen | In Swedish |
In Lithuanian | → International relations → International economic cooperation → Mining → Metallurgy |
| EAPPI | European Association of the Plasma Products Industry | In English | → Associations → Pharmacology, toxicology |
| EAR | Engineering Analysis Report | In English | → Engineering, technology |
| EAR | Engineering Action Request | In English | → Engineering, technology |
| EAR | European Arthroplasty Register | In English | → Medicine |
| EARSS | Early Albumin Resuscitation during Septic Shock | In English | → Pharmacology, toxicology → Surgery, orthopaedics, ophthalmology |
| EARTO | European Association of Research and Technology Organisations | In English | → Research policy → Associations → Engineering, technology |
| EAS | Energy Action Scotland | In English | → Energy economics |
| EAS | Equivalent Airspeed | In English | → Aeronautics, aircraft |
| EAS | Engine Actuation System | In English | → Mechanical engineering |
| EASA | Electricidad Argentina SA | In Spanish | → Electrical engineering |
| EASA | European Aviation Safety Agency | In English | → Organizations and associations → Aeronautics, aircraft → Transport and postal services |
| EASI | ETSI (European Telecommunications Standards Institute) Project ATM Services and Inter-operability | In English | → Telecommunications |
| EAT | Enterale Ambulante Therapie | In German | → Medicine |
| EATA | European Association for Telematic Applications | In English | → Associations → Telecommunications |
| EATE | Entreprise Artisanale des Transports par Eau | In French | → Transport and postal services |
| EATR | Extravehicular Assist Teleoperator Robot | In English | → Spaceflight engineering, astronautics |
| EAU | European Assocation of Urology | In French | → Organizations and associations → Urology |
| EAU | European Association of Urology | In English | → Associations → Urology |
| EAZ | Energie Agentschap Zoetermeer | In Dutch | → Energy economics |
| EBA | Estonian Biomass Association | In English | → Energy economics |
| EBE | Excédent Brut d'Exploitation | In French | → Accounting |
| EBG | Electronic Business Group | In English | → Telecommunications → Trade |
| EBL | Europäische Behörde für Lebensmittelsicherheit = EFSA | European Food Safety Authority | In English = AESA | Autorité Européenne de Sécurité des Aliments | In French |
In German | → European Union → Medicine → Agricultural sciences → Food technology |
| EBLS | Europäische Behörde für die Lebensmittelsicherheit | In German | → Public administration, government → Food technology |
| EBMT | European Group for Blood and Marrow Transplantation | In English | → Organizations and associations → Blood and circulatory system → Surgery, orthopaedics, ophthalmology |
| EBNIC | European Biotechnology Node for Interaction with China | In English | → Biotechnology → European Union |
| EBOS | E-Business Operating System | In English | → Computer science → Trade → Telecommunications |
| EBPF | European Biocidal Product Forum | In English | → Organizations and associations → Chemicals → Pharmacology, toxicology → Food technology |
| EBPP | Electronic Bill Presentment and Payment | In English | → Trade → Telecommunications |
| EBS | Emergency Breathing Subsystem | In English | → Medicine |
| EBU | European Broadcasting Union (www.ebu.ch) = UER | Union Européenne de Radio-télévision | In French = ЕСРТ | Европейски съюз за радио и телевизия | In Bulgarian = ЄТС | Європейський Телерадіомовний Союз | In Ukrainian = ЕВС | Европейский вещательный союз | In Russian = UER | União Europeia de Radiodifusão | In Portuguese |
In English | → Organizations and associations → Telecommunications |
| EC | Engine Control | In English | → Mechanical engineering → Vehicle engineering |
| EC | Engine Cutoff | In English | → Mechanical engineering → Vehicle engineering |
| EC4 | European Communities Confederation of Clinical Chemistry | In English | → Organizations and associations → Pharmacology, toxicology |
| ECA | Electronic Computer Assembly | In English | → Computer science → Electronics |
| ECA | Electronic Control Assembly | In English | → Electronics |
| ECA | Engine Control Assembly | In English | → Vehicle engineering |
| ECAC | European Civil Aviation Conference | In English | → Organizations and associations → Aeronautics, aircraft → Transport and postal services |
| ECACC | European Collection of Cell Cultures (http://ecacc.org.uk) | In English | → Cytology → Biotechnology |
| ECATA | European Consortium for Advanced Training in Aerospace | In English | → Education → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| ECB | Energy Centre Bratislava | In English | → Energy economics |
| ECCA | European Cable Communications Association | In English | → Associations → Telecommunications |
| ECCAP | Electromagnetic Compatibility Computer Analysis Proposal | In English | → Computer science → Electronics |
| ECCAP | Electromagnetic Compatibility Circuit Analysis Program | In English | → Electronics |
| ECCREDI | European Council for Construction Research, Development and Innovation | In English | → Building |
| ECD | Energy Citations Database | In English | → Bibliography → Energy economics |
| ECDC | European Centre for Disease Prevention | In English | → Public health and hygiene |
| ECF | Extracellular fluid | In English | → Physiology |
| ECG | Electrocardiogram | In English | → Diagnostics |
| ECG | Electrocardiograph(y) | In English | → Diagnostics |
| ECHI | European Community Health Indicator | In English | → Statistics → Public health and hygiene |
| ECI | European Copper Institute | In English | → Electrical engineering → Metallurgy |
| ECIA | Engineering Construction Industry Association (www.ecia.co.uk) | In English | → Organizations and associations → Civil engineering → Building |
| ECIS | European Conference on Information Systems | In English | → Computer science → Telecommunications |
| ECITC | European Committee for IT&T Testing and Certification | In English | → Organizations and associations → Telecommunications |
| ECK | Elektrociepłownia Kraków | In Polish | → Electrical engineering |
| ECL | Electronic Circuit Logic | In English | → Computer science → Electronics |
| ECL | École Centrale de Lyon | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| ECL | École Centrale de Lille | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| ECLRv | Electrical Communication Laboratories Review | In English | → Serial publications, periodicals → Electrical engineering → Telecommunications |
| ECM | Energy Conversion Management | In English | → Serial publications, periodicals → Energy economics |
| ECM | Engineering Change Management | In English | → Engineering, technology |
| ECMT | European Conference of Ministers of Transport (www.cemt.org) = CEMT | Conférence Européenne des Ministres des Transports | In French |
In English | → European Union → Transport and postal services |
| ECN | Engineering Change Notice | In English | → Engineering, technology |
| ECN | Explicit Congestion Notification | In English | → Networks, communication → Telecommunications |
| ECN | École Centrale de Nantes | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| ECN | Energy Research Centre of the Netherlands | In English | → Energy economics |
| ECN | Energieonderzoek Centrum Nederland | In Dutch | → Energy economics |
| ECNP | European College of Neuropsychopharmacology | In English | → Pharmacology, toxicology → Neurology |
| ECO | Engine Combustion | In English | → Vehicle engineering |
| ECO | Engine Cutoff | In English | → Vehicle engineering |
| ECO | Engineering Change Order | In English | → Engineering, technology |
| ECONAG | European Conference on Aging | In English | → Medicine |
| ECP | École Centrale de Paris | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| ECP | Engineering Control Program | In English | → Engineering, technology |
| ECPM | École européenne de Chimie, Polymères et Matériaux de Strasbourg | In French | → Specialized or (poly)technical colleges → Chemistry → Chemical technology → 620 |
| ECQAC | Electronic Components Quality Assurance Committee | In English | → Organizations and associations → Quality management → Electronics |
| ECR | Engineering Change Request | In English | → Engineering, technology |