| ECRA | Engineering Change Request Authorization | In English | → Engineering, technology |
| ECRIN | Épreuves Communes de Recrutement pour écoles d'INgénieurs | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| ECRIN | Association Échange et Coordination Recherche INdustrie | In French | → Research policy → Associations → Engineering, technology |
| ECS | Engine Control System | In English | → Vehicle engineering |
| ECS | Electrical Control Station | In English | → Electrical engineering |
| ECSC | European Coal and Steel Community = 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 = 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 = EAPB | Europos anglių ir plieno bendrija | In Lithuanian |
In English | → International relations → International economic cooperation → Mining → Metallurgy |
| ECSC | Energy Conservation and Solar Centre | In English | → Energy economics |
| ECSG | Electronic Commerce Steering Group | In English | → Trade → Telecommunications |
| ECSR | Environmental Coordination Services & Recycling | In English | → Environmental technology, water supply, waste management |
| ECSS | European College of Sport Science | In English | → Organizations and associations → Medicine → Sport, physical exercises |
| ECSS | European Committee for the Study of Salt | In English | → Food technology |
| ECSS | European Cooperation for Space Standardization | In English | → Standardization → Astronomy → Spaceflight engineering, astronautics |
| ECTEL | European Telecommunications and Professional Electronics Industry | In English | → Electronics → Telecommunications |
| ECTP | European Construction Technology Platform | In English | → Organizations and associations → Building |
| ECTRA | European Committee for Telecommunications Regulatory Affairs | In English | → Organizations and associations → Telecommunications |
| ECTRI | European Conference of Transport Research Institutes | In English | → Transport and postal services |
| ECU | Engine Control Unit | In English | → Vehicle engineering |
| ECU | Electrical Control Unit | In English | → Electrical engineering |
| ECU | Electrical Conversion Unit | In English | → Electrical engineering |
| ECU | Electronic Coupling Unit | In English | → Electronics |
| ECURIE | European Community Urgent Radiological Information Exchange | In English | → Nuclear technology |
| ECW | Elektrociepłownie Wybrzeże SA (www.ecwybrzeze.pl) | In Polish | → Electrical engineering |
| ED | Engineering DIrectorate | In English | → Engineering, technology |
| ED | Engineering Division | In English | → Engineering, technology |
| ED | Engineering Directive | In English | → Engineering, technology |
| EDA | Electronic Display Assembly | In English | → Human-computer interaction → Electronics |
| EDA | Études Détaillées d'Accidents | In French | → Transport and postal services |
| EDC | Engineering Data Center | In English | → Knowledge management → Engineering, technology |
| EDC | Engineering Design Change | In English | → Engineering, technology |
| EDCC | Engineering Drawing Control Center | In English | → Engineering, technology |
| EDCP | Engineering Design Change Proposal | In English | → Engineering, technology |
| EDCS | Electrical Distribution and Control System | In English | → Electrical engineering |
| EDCTP | European and Developing Countries Clinical Trials Programme | In English | → Pharmacology, toxicology |
| EDDL | Electronic Device Description Language | In English | → Computer architecture → Hardware → Electronics |
| EDE | Elementos Decorativos Eléctricos (www.e-d-e.com) | In Spanish | → Electrical engineering |
| EDE | Établissement Départemental d’Élevage | In French | → Agricultural sciences |
| EDENOR | Empresa Distribuidora y Comercializadora Norte (www.edenor.com.ar) | In Spanish | → Electrical engineering |
| EDF | Engineering Data File | In English | → Data → Engineering, technology |
| EDF | Électricité de France (www.edf.fr) | In French | → Energy economics → Electrical engineering |
| EDF-T | Électricité de France-Trading | In French | → Finance → Electrical engineering |
| EDFA | Erbium Dopped Fiber Amplifier | In English | → Telecommunications |
| EDFI | Électricité de France International | In French | → Electrical engineering |
| EDGE | Enhanced Data Rates for GSM Evolution | In English | → Telecommunications |
| EDIFICAS | Échange de données informatisées fiscales, informationnelles, comptables, analytiques et d'audit, et sociales | In French | → Labour, labour economics → Trade → Accounting |
| EDIV | Engineering Design Intent Verification | In English | → Engineering, technology |
| EDL | Engineering Development Laboratory | In English | → Research institutes → Engineering, technology |
| EDLN | Engineering Development Logic Network | In English | → Engineering, technology |
| EDLS | Engineering Drawing Library System | In English | → Engineering, technology |
| EDM | Electrical Discharge Machining | In English | → Electrical engineering |
| EDM | Engineering Development Model | In English | → Engineering, technology |
| EDM | École Doctorale Médicament | In French | → Higher education, universities → Pharmacology, toxicology |
| EDM | Énergie du Mali | In French | → Energy economics → Electrical engineering |
| EDM | Études et Développement Mécaniques | In French | → Mechanical engineering |
| EDM | Efficience et Déficience Motrices | In French | → Pathology |
| EDMA | European Diagnostic Manufacturers Association | In English | → Associations → Diagnostics |
| EDO | Extended Duration Orbiter | In English | → Spaceflight engineering, astronautics |
| EDO | Extended-Duration Orbiter | In English | → Spaceflight engineering, astronautics |
| EDÖ | Epilepsie Dachverband Österreich (www.epilepsie.at) | In German | → Organizations and associations → Neurology |
| EDP | Energias de Portugal | In Portuguese | → Energy economics → Electrical engineering |
| EDP | Electricidade de Portugal | In Portuguese | → Electrical engineering |
| EDQM | European Directory for Quality of Medecine | In English | → Libraries → Medicine |
| EDR | Engineering Design Review | In English | → Engineering, technology |
| EDROME | Exploration et exploitation Durable des Ressources Océaniques Minérales et Énergétiques | In French | → Energy economics → Mining |
| EDRS | European Data Relay Satellite | In English | → Data → Spaceflight engineering, astronautics → Telecommunications |
| EDS | Electrical Distribution System | In English | → Electrical engineering |
| EDS | Engineering Data System | In English | → Engineering, technology |
| EDS | Engineering Design System | In English | → Engineering, technology |
| EDS | Engineering Development Schedule | In English | → Engineering, technology |
| EE | Electrical Engineering | In English | → Electrical engineering |
| EEA | Energy Efficiency Agency | In English | → Energy economics |
| EEA | Électronique, Électrotechnique, Automatique | In French | → Electrical engineering → Electronics |
| EEB | Encefalopatía Espongiforme Bovina = BSE | Bovine Spongiform Encephalopathy | In English = ESB | Encéphalopathie Spongioforme Bovine | In French = BSE | Bova Spongoforma Encefalopatio | In Esperanto = BSE | Bovine Spongiforme Enzephalopathie | In German = BSE | Bovin spongiform ensefalopati | In Turkish = ESB | Encephalopathia Spongiforme Bovin | In Interlingua = BSE | Boviene spongiforme encefalopathie | In Dutch = GSE | Goveđa spongiformna encefalopatija | In Serbo-Croatian = ESB | Encefalopatia Spongiforme Bovina | In Italian |
In Portuguese | → Veterinary medicine |
| EEC | Études et Économie de la Construction | In French | → Civil engineering → Building |
| EECA | European Electronic Component Manufacturers Association | In English | → Associations → Electronics |
| EEE | Electronic, Electrical, and Electromechanical | In English | → Mechanical engineering → Electrical engineering → Electronics |
| EEEE | Ελληνική Εθνική Ένωση κατά της Επιληψίας (www.epilepsy-greece.com) | In Greek | → Associations → Neurology |
| EEEU | End Effector Electronics Unit | In English | → Electronics |
| EEG | Erdöl Erdgas Gommern GmbH | In German | → Energy economics → Chemical technology |
| EEG | Erneuerbare-Energien-Gesetz | In German | → Politics → Energy economics |
| EEG | Electroencephalography | In English | → Neurology |
| EEG | Energy Economics Group | In English | → Organizations and associations → Energy economics |
| EEG | Elektro-Enzephalogramm/Elektro-Enzephalographie | In German | → Neurology |
| EEI | Edison Electrical Institute (www.eei.org) | In English | → Organizations and associations → Electrical engineering |
| EEL | Electrical Equipment List | In English | → Electrical engineering |
| EEM | Earth Entry Module | In English | → Spaceflight engineering, astronautics |
| EEP | Electronic Equipment Package | In English | → Electronics |
| EEPCA | European Electrical Products Certification Association | In English | → Associations → Electrical engineering |
| EEPSEA | Economy and Environment Program for Southeast Asia | In English | → Economics → Environmental technology, water supply, waste management |
| EEQ | Erneuerbare Energiequelle | In German | → Energy economics |
| eERG | End-use Efficiency Research Group | In English | → Energy economics → Mechanical engineering |
| EERI | Estonian Energy Research Institute | In English | → Energy economics |
| EES | Electronic Switching System(s) | In English | → Electronics |
| EES | Escape Ejection Suit | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| EES | Ejection Escape Suit | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| EES | Emergency Ejection Suit | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| EET | Erneuerbare Energieträger | In German | → Energy economics |
| EETB | Electronic/Electrical Termination Building | In English | → Electrical engineering → Electronics |
| EEU | Extravehicular Excursion Unit | In English | → Spaceflight engineering, astronautics |
| EEV | Enhanced Environmentally friendly Vehicle | In English | → Vehicle engineering |
| EEyeR | Experimental Eye Research | In English | → Serial publications, periodicals → Biological sciences → Anatomy |
| EF | Expedited Forwarding | In English | → Networks, communication → Telecommunications |
| EFA | Experiment Flight Application | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| EFA | Essential Fatty Acid | In English | → Nutrition |
| EFAP | École Française des Attachés de Presse (et des professionnels de la communication) | In French | → Newspapers, journalism → Higher education, universities → 659 |
| EFB | European Federation of Biotechnology | In English | → Organizations and associations → Biotechnology |
| EFC | European Fuel Cell | In English | → Energy economics → Vehicle engineering |
| EFCG | European Fine Chemical Group (http://efcg.cefic.org) | In English | → Organizations and associations → Chemicals |
| EFDA | European Fusion Development Association (www.efda.org) | In English | → Associations → 53912 → Nuclear technology |
| EFDV | École Française de Dressage de Veau | In French | → Specialized or (poly)technical colleges → Agricultural sciences |
| EFESE | Économie, Fonctionnement et Études des Systèmes Énergétiques | In French | → Energy economics → Electrical engineering |
| EFF | Electronic Frontier Foundation | In English | → Foundations → Electronics |
| EFFI | Electronic Frontier Finland | In English | → Organizations and associations → Electronics |
| EFG | Energieforschungsgemeinschaft | In German | → Energy economics |
| EFIP | European Federation of Inland Ports = FEPI | Fédération Européenne des Ports Intérieurs | In French = EVB | Europäischer Verband der Binnenhäfen | In German |
In English | → Organizations and associations → Transport and postal services |
| EFLT | Enhanced Forward Link Trilateration | In English | → Telecommunications |
| EFOG | Elgin Franklin Oil & Gas Ltd | In English | → Energy economics → Chemical technology |
| EFOiGR | Europejski Fundusz Orientacji i Gwarancji Rolnej = FEOGA | Fonds Européen d'Orientation et de Garantie Agricole | In French = EAGFL | Europäischer Ausrichtungs- und Garantiefonds für Landwirtschaft | In German = FEAOG | Fondo Europeo Agricolo di Orientamento e di Garanzia | In Italian = EAGGF | European Agriculture Guidance and Guarantee Funds | In English = EUGFJ | Europeiska utvecklings- och garantifonden för jordbruket | In Swedish |
In Polish | → International relations → European Union → Agricultural sciences |
| EFP | ESA Furnished Property | In English | → Spaceflight engineering, astronautics |
| EFPG | École Française de Papeterie et des industries Graphiques | In French | → Specialized or (poly)technical colleges → Graphic industries, printing, publishing → Paper and board industry |
| EFR | European Federation for Colorectal Cancer | In English | → Organizations and associations → 6163 → Oncology |
| EFSA | European Food Safety Authority = EBL | Europäische Behörde für Lebensmittelsicherheit | In German = AESA | Autorité Européenne de Sécurité des Aliments | In French |
In English | → European Union → Medicine → Agricultural sciences → Food technology |
| EFSMA | European Federation of Sports Medicine Associations | In English | → Organizations and associations → Medicine → Sport, physical exercises |
| EFSSS | Engine Failure Sensing and Shutdown System | In English | → Vehicle engineering |
| EFTO | Encrypted For Transmission Only | In English | → Telecommunications |
| EFTPOS | Electronic Funds Transfer at Point Of Sale | In English | → Trade → Telecommunications |
| EGAS | Egyptian Natural Gas Holding Company | In English | → Chemical technology |
| EGCTU | Établissement de Gestion et de Contrôle du Trafic Urbain | In French | → Transport and postal services |
| EGEC | European Geothermal Energy Council | In English | → Energy economics |
| EGI | European Grid Initiative | In English | → Networks, communication → Telecommunications |
| EGIL | Electrical, General Instrumentation, and Lighting | In English | → Electrical engineering |
| EGKS | Europese Gemeenschap voor Kolen en Staal = ECSC, EKSF, ESUO, EZUČ, CECA, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EKSG, EAPB (look above) |
In Dutch | → International relations → International economic cooperation → Mining → Metallurgy |
| EGKS | Europäische Gemeinschaft für Kohle und Stahl = ECSC, EKSF, ESUO, EZUČ, CECA, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EKSG, EAPB (look above) |
In German | → International relations → International economic cooperation → Mining → Metallurgy |
| EGKS | Europese Gemêenschap voo Kooln en Stoal = ECSC, EKSF, ESUO, EZUČ, CECA, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EKSG, EAPB (look above) |
[VLS] | → International relations → International economic cooperation → Mining → Metallurgy |
| EGL | External Genital Lesion | In English | → Pathology |
| EGPC | Egyptian General Petroleum Corporation | In English | → Chemical technology |
| EGT | Entreprise Générale de Télécommunications | In French | → Telecommunications |
| EHA | European Hematology Association | In English | → Associations → Blood and circulatory system |
| EHA | Electrohydraulic Actuator | In English | → Mechanical engineering → Electrical engineering |
| EHF | European Health Forum | In English | → Medicine |
| EHFG | European Health Forum Gastein | In English | → Medicine |
| EHOT | External Hydrogen/Oxygen Tank | In English | → Spaceflight engineering, astronautics |
| EHP | Effective Horsepower | In English | → Mechanical engineering |
| EHP | Electrical Horsepower | In English | → Electrical engineering |
| EHPRN | European Health Policy Research Network | In English | → Public health and hygiene |
| EHS | Environmental Health Services | In English | → Medicine |
| EHTP | École Hassania des Travaux Publics | In French | → Specialized or (poly)technical colleges → Civil engineering → Building |
| EHYT | Euroopan hiili- ja teräsyhteisö = ECSC, EKSF, ESUO, EZUČ, CECA, EGKS, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EKSG, EAPB (look above) |
In Finnish | → International relations → International economic cooperation → Mining → Metallurgy |
| EI | Electronics Interface | In English | → Electronics |
| EI | Energi Industrien | In German | → Industry, industrial policy → Energy economics |
| EIA | Electrical Industries Association (www.eia.org) | In English | → Associations → Electrical engineering |
| EIAA | European Interactive Advertising Association | In English | → Organizations and associations → 6591 |
| EIAK | Elterninitiative Anfallkranker Kinder Wien | [FE] | → Organizations and associations → Pediatry |
| EIC | Experimental Intercom | In English | → Telecommunications |
| EICT | European Center for Information and Communication Technologies | In English | → Computer science → Telecommunications |
| EIE | Équipements et Installations Électriques | In French | → Electrical engineering |
| EIER | École Inter-états d'Ingénieurs de l'Équipement Rural | In French | → Specialized or (poly)technical colleges → Agricultural sciences |
| EIfER | European Institute for Energy Research (www.eifer.uni-karlsruhe.de) | In English | → Research institutes → Energy economics → Electrical engineering |
| EIGA | European Industrial Gases Association (www.eiga.org) | In English | → Associations → Chemical technology |
| EIGSI | École d’Ingénieurs en Génie des Systèmes Industriels | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| EIHP | Energy Institute Hrvoje Pozar | In English | → Energy economics |
| EIM | Espace Intima Média = IMT | Intima Media Thickness | In English |
In French | → Blood and circulatory system → Cardiology |
| EIP | Empire Innovation Program | In English | → Mathematics and natural sciences |
| EIP | Europäische und Internationale Programme | In German | → Mathematics and natural sciences |
| EIR | Equipment Identity Register | In English | → Telecommunications |
| EIS | Electrical Integration System | In English | → Electrical engineering |
| EITS | Enhancing International Travel Security | In English | → Transport and postal services |
| EIUM | École d'Ingénieurs de l'Université de Maurice | In French | → Specialized or (poly)technical colleges → Engineering, technology |
| EIV | Energieinstitut Vorarlberg | In German | → Energy economics |
| EIVT | Electrical and Instrumentation Verification Test | In English | → Electrical engineering |
| EIVT | Electronic Installation Verification Test | In English | → Electronics |
| EIVT | Electrical Interface Verification Test | In English | → Electrical engineering |
| EJEE | European Journal of Engineering Education | In English | → Serial publications, periodicals → Education → Engineering, technology |
| EJFLU | Europeiska jordbruksfonden för landsbygdsutveckling = 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 = EAFRD | European Agricultural Fund for Rural Development | In English = 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 |
In Swedish | → Agricultural sciences |
| EJM | Épitaxie par Jets Moléculaires = MBE | Molecular Beam Epitaxy | In English |
In French | |
| EKSF | Det europeiske kull- og stålfellesskap = ECSC, ESUO, EZUČ, CECA, EGKS, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EKSG, EAPB (look above) |
In Norwegian | → International relations → International economic cooperation → Mining → Metallurgy |
| EKSF | Europæiske Kul- og Stålfællesskab = ECSC, ESUO, EZUČ, CECA, EGKS, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EKSG, EAPB (look above) |
In Danish | → International relations → International economic cooperation → Mining → Metallurgy |
| EKSG | Europeiska kol- och stålgemenskapen = ECSC, EKSF, ESUO, EZUČ, CECA, EGKS, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EAPB (look above) |
In Swedish | → International relations → International economic cooperation → Mining → Metallurgy |
| ElBah | Elektrische Bahnen | In German | → Serial publications, periodicals → Electrical engineering → Vehicle engineering |
| ELC | European Lighting Council | In English | → Organizations and associations → Electrical engineering → Environmental technology, water supply, waste management |
| ELCIDIS | ELectric CIty DIstribution System | In English | → Electrical engineering → Vehicle engineering |
| ELDO | European Launcher Development Organisation | In English | → Organizations and associations → Spaceflight engineering, astronautics |
| ELER | Europäischer Landwirtschaftsfonds für die Entwicklung des ländlichen Raums = EJFLU, FEADER, ELFUL, ΕΓΤΑΑ, EAFRD, FEASR, ELFPO (look above) |
In German | → Agricultural sciences |
| ELF | European Lung Foundation | In English | → Foundations → Chest diseases |
| ELF-AREK | Esperanto-Ligo Filatelista - Amika Rondo de Esperantaĵ-Kolektantoj | In Esperanto | → Organizations and associations → Transport and postal services |
| ELFPO | Europees Landbouwfonds voor Plattelandsontwikkeling = EJFLU, FEADER, ELFUL, ELER, ΕΓΤΑΑ, EAFRD, FEASR (look above) |
In Dutch | → Agricultural sciences |
| ELFUL | Europæiske Landbrugsfond for Udvikling af Landdistrikterne = EJFLU, FEADER, ELER, ΕΓΤΑΑ, EAFRD, FEASR, ELFPO (look above) |
In Danish | → Agricultural sciences |
| ELINT | Electronic Intelligence Satellite | In English | → Electronics → Spaceflight engineering, astronautics |
| ElL | Electronics Letters | In English | → Serial publications, periodicals → Electronics |
| ElLC | Electrotechnical Laboratory Circulars | In English | → Serial publications, periodicals → Electrical engineering |
| ElLR | Electrotechnical Laboratory Researches | In English | → Serial publications, periodicals → Electrical engineering |
| ElMod | Электронное моделирование = ElMod | Elektronnoe Modelirovanie | In Russian |
In Russian | → Serial publications, periodicals → Electrical engineering |
| ElMod | Elektronnoe Modelirovanie = (look above) |
In Russian | → Serial publications, periodicals → Electrical engineering |
| ELORA | Ermittlung des lokalen Radonpotentials | In German | → Environmental technology, water supply, waste management → Building |
| ElP | Electronics Power | In English | → Serial publications, periodicals → Electronics |
| ElPro | Electronic Progress | In English | → Serial publications, periodicals → Electronics |
| ELS | Eastern Launch Site | In English | → Spaceflight engineering, astronautics |
| ELSA | Ethical, Legal and Social Aspects | In English | → Ethics → Law, jurisprudence → Biological sciences → Medicine |
| ELSECOM | European Electrotechnical Sectoral Committee for Testing and Certification | In English | → Organizations and associations → Quality management → Electrical engineering |
| ElTA | Elektronnaia Tekhnika Avtomatike | In Russian | → Serial publications, periodicals → Mechanical engineering |
| ELV | Expendable Launch Vehicle | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |