| Acronym | Sense | Language | Topics |
|---|---|---|---|
| DACP | Day-Ahead Commitment Process | In English | → Energy economics → Canada |
| DAD | Détecteur Autonome Déclencheur | In French | → Electrical engineering |
| DADS | Dual Air Density Satellite | In English | → Astronautics |
| DAIS | Data Avionics Information System | In English | → Software → Data → Aeronautics, aircraft |
| DAM | Direction des Applications Militaires | In French | → Military engineering |
| DANASAT | Direct-Ascent Nuclear ASAT | In English | → Nuclear technology |
| DANCE | Département Appui à la Négociation pour la Commercialisation de l'Électricité | In French | → Trade → Energy economics |
| DAP | Descent Analysis Program | In English | → Computer programs → Aeronautics, aircraft → Astronautics |
| DAP | Dévidoir Automobile Prémélangeur | In French | → Automobile manufacturing → Firefighting |
| DARA | Deutsche Agentur für Raumfahrtangelegenheiten | In German | → Organizations and associations → Astronomy → Astronautics → Germany |
| DAS | Digital Avionics System | In English | → Computer-based techniques → Aeronautics, aircraft |
| DASA | Dual Aerospace Servoamplifier | In English | → Aeronautics, aircraft → Astronautics |
| DAT | Déclaration d'Achèvement des Travaux | In French | → Civil engineering → Construction |
| DAT | Direction des Armements Terrestres | In French | → Public administration, government → Military engineering |
| DATR | Directement Affecté aux Travaux sous Rayonnements | In French | → Nuclear technology |
| DATT | Dévidoir Automobile Tout-Terrain | In French | → Automobile manufacturing → Firefighting |
| DBC | Dictionnaire Biographique des Cheminots | In French | → Dictionaries → Biography → Rail transport engineering → Rail transport → France |
| DBGE | Dictionnaire Biographique des Gaziers-Électriciens | In French | → Dictionaries → Biography → Energy economics → Electrical engineering |
| DBPV | Design Basis Probability Value | In English | → Nuclear technology |
| DBW | Differential Ballistic Wind | In English | → Military engineering |
| DC | Delta Clipper | In English | → Aeronautics, aircraft → Astronautics |
| DCAA | Defense Contract Audit Agency | In English | → Military affairs → Military engineering |
| DCAN | Direction des Constructions et Armes navales | In French | → Public administration, government → Military engineering |
| DCAT | Diesel Clean Advanced Technology | In English | → Vehicle engineering |
| DCE | Data and Control Electronics | In English | → Electronics |
| DCEA | Digital Control Electronics Assembly | In English | → Electronics |
| DCMAA | Direction Centrale du Matériel de l'Armée de l'Air | In French | → Public administration, government → Military engineering |
| DCN | Division Combustibles Nucléaires | In French | → Nuclear technology |
| DCSD | Département Commande des Systèmes et Dynamique du vol | In French | → Electronics → Aeronautics, aircraft |
| DCTIM | Direction Centrale des Travaux Immobiliers Maritimes | In French | → Environmental technology, water supply, waste management → Construction |
| DDB | Double Dérivation de Branchements | In French | → Electrical engineering |
| DDC | Defense Documentation Center | In English | → Documentation → Military affairs → Military engineering |
| DDE | Direction Départementale de l'Équipement | In French | → Regional administration → Civil engineering |
| DDF | De Dietrich Ferroviaire | In French | → Organizations and associations → Rail transport engineering → France |
| DDREF | Dose and Dose Rate Effectiveness Factor | In English | → Nuclear technology |
| DE | Display Electronics | In English | → Electronics |
| DEA | Deployed Electronics Assembly | In English | → Electronics |
| DEA | Digital Electronics Assembly | In English | → Electronics |
| DEA | Display Electronics Assembly | In English | → Electronics |
| DEAT | Donegal Energy Action Team | In English | → Energy economics |
| DEC | Digital Equipment Corporation | In English | → Computer hardware → Electronics |
| DECCO | Defense Commercial Communication Office | In English | → Military affairs → Military engineering |
| DECL | Direct Energy Conversion Laboratory | In English | → Research institutes → Energy economics |
| DEEE | Déchets des équipements électriques et électroniques = WEEE | Waste Electrical and Electronic Equipment | In English |
In French | → Electrical engineering → Electronics → Environmental technology, water supply, waste management |
| DEEIT | Division de l'Électricité, de l'Électromécanique, de l'Informatique et des Télécommunications | In French | → Computer science → Electrical engineering → Electronics → 65 |
| DEFA | Dana Esperantista Fervojista Asocio | In Esperanto | → Associations → Rail transport engineering → Transport and postal services → Artificial languages (linguistics) → Denmark |
| DefEl | Defense Electronics | In English | → Serial publications, periodicals → Military affairs → Electronics → Military engineering |
| DEFF | Danmarks Elektroniske Forskningsbibliotek | In Danish | → Libraries → Electronics → Denmark |
| DEH | Directorate of Engineering and Housing | In English | → Accommodation |
| DEHOMAG | DEutsche HOllerith MAschinen Gesellschaft | In German | → Organizations and associations → Mechanical engineering → Germany |
| DEI | Direction de l'Électronique et de l'Informatique | In French | → Computer science → Electronics |
| DEL | Deorbit, Entry, and Landing | In English | → Astronautics |
| DELMIA | Digital Enterprise Lean Manufacturing Interactive Application | In English | → Computer-based techniques |
| DEMAR | Déambulation et Mouvement Artificiel | In French | → Anatomy → Mechanical engineering |
| DÉMÁSZ | Dél-magyarországi Áramszolgáltató Részvénytársaság | In Hungarian | → Energy economics → Electrical engineering → Hungary |
| DEMKO | Danmarks Elektriske Materielkontrol | In Danish | → Electrical engineering → Denmark |
| DEMOSTEINE | Dispositif EDF de Messagerie Orale par Serveur TÉléphonique lors d'INcidents Électriques | In French | → Telecommunications → Electrical engineering |
| DENA | Deutsche Energie-Agentur (www.dena.de) | In German | → Energy economics → Germany |
| DEP | Display Electronics Package | In English | → Electronics |
| DEPT | Direction Électricité Production Transports | In French | → Electrical engineering |
| DeScE | Defense Science Electronics | In English | → Serial publications, periodicals → Military affairs → Electronics → Military engineering |
| DESE | Département d'Exploitation du Système Électrique | In French | → Electrical engineering |
| DEST | Diplôme d'Études Supérieures Technologiques | In French | → Specialized or polytechnical colleges |
| DESTA | Diplôme d'Études Supérieures Technologiques Approfondies | In French | → Specialized or polytechnical colleges |
| DESTU | Diplôme d'Études Supérieures Technologiques Universitaires | In French | → Higher education, universities |
| DET | Direct Energy Transfer | In English | → Energy economics |
| DETN | Direction des Études et Techniques Nouvelles | In French | |
| DEU | Digital Electronics Unit | In English | → Electronics |
| DEU | Display Electronics Unit | In English | → Electronics |
| DEW | Directed-Energy Weapon | In English | → Military engineering |
| DF | Development Flight | In English | → Aeronautics, aircraft → Astronautics |
| DF | Direct Flight | In English | → Aeronautics, aircraft → Astronautics |
| DFA | Dutch Flight Academy (www.dfa-fto.nl) | In English | → Specialized or polytechnical colleges → Aeronautics, aircraft → Transport and postal services → Netherlands |
| DFCS | Digital Flight Control Software | In English | → Software → Aeronautics, aircraft → 62989 |
| DFCS | Digital Flight Control System | In English | → Aeronautics, aircraft → Astronautics |
| DFI | Development Flight Instrumentation | In English | → Aeronautics, aircraft → Astronautics |
| DFI | Development Flight Integration | In English | → Aeronautics, aircraft → Astronautics |
| DFL | Deutsche Forschungsanstalt für Luftfahrt | In German | → Research institutes → Aerodynamics → Aeronautics, aircraft → Germany |
| DFRC | Dryden Flight Research Center | In English | → Research institutes → Aeronautics, aircraft → Astronautics → United States |
| DFRF | Dryden Flight Research Facility | In English | → Aeronautics, aircraft → Astronautics |
| DFS | Dynamic Flight Simulator | In English | → Computer simulation → Aeronautics, aircraft |
| DFS | Deutsche Flugsicherung GmbH = DDT | Dichlorodiphényltrichloréthane | In French = ДДТ | дихлоро-дифенил-трихлороетан | In Bulgarian = DDT | Dihlor-difenil-trihloretan | In Bosnian = DDT | Dicloro-difenil-tricloroetà | In Catalan = DDT | Dichlordiphenyltrichlorethan | In Danish = DDT | Dichlordiphenyltrichlorethan | In German = DDT | Dichlorodiphenyltrichloroethane | In English = DDT | Diklor-difenil-trikloretano | In Esperanto = DDT | Dicloro-difenil-tricloroetano | In Spanish = DDT | Diklorodifenüültrikloroetaan | In Estonian = DDT | Dikloori-difenyyli-trikloorietaani | In Finnish = די די טי | דיכלורו-דיפניל-טריכלורו-אתאן | In Hebrew = DDT | Diklór-difenil-triklór-etán | In Hungarian = DDT | Diclorodifeniltricloroetano | In Italian = DDT | Dichloro-Difenil-Trichloroetanas | In Lithuanian = DDT | Dichloordifenyltrichloorethaan | In Dutch = DDT | Diklor-difenyl-trikloretan | In Nynorsk = DDT | Dichlorodifenylotrichloroetan | In Polish = DDT | Dicloro-Difenil-Tricloroetano | In Portuguese = DDT | Diclor-Difenil-Tricloretan | In Romanian = ДДТ | ДихлорДифенилТрихлорметилметан | In Russian = DDT | Dichlórdifenyltrichlóretán | In Slovak = DDT | Dikloro-Difenil-Trikloroetan | In Slovenian = ДДТ | Дихлор-дифенил-трихлоретан | In Serbian = DDT | Diklordifenyltrikloretan | In Swedish |
In German | → Transport and postal services → Aeronautics, aircraft → Chemicals → Agricultural sciences |
| DFVLR | Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt | In German | → Research institutes → Aeronautics, aircraft → Astronautics → Germany |
| DFY | Design For Yield | In English | → Electronics |
| DGA | Délégation Générale pour l'Armement (www.defense.gouv.fr/dga/) | In French | → Military affairs → Military engineering |
| DGAA | Direzione Generale Armamenti Aeronautici | In Italian | → Military engineering → Aeronautics, aircraft |
| DGAC | Direction Générale de l'Aviation Civile | In French | → Public administration, government → Aeronautics, aircraft |
| DGEMP | Direction Générale de l'Énergie et des Matières Premières | In French | → Central administration → Energy economics |
| DGID | Direction Grandes Industries du Distributeur | In French | → Electrical engineering |
| DGMT | Direction Générale de la Mer et des Transports | In French | → Vehicle engineering → Transport and postal services |
| DGRT | Direction Générale de la Recherche et de la Technologie | In French | → Central administration → Research policy |
| DGS | Deutsche Gesellschaft für Sonnenenergie (www.dgs.de) | In German | → Organizations and associations → Energy economics → Germany |
| DGSRN | Direction Générale de la Sûreté et de la Radioprotection Nucléaire | In French | → Nuclear technology |
| DHET | Diplôme des Hautes Études Technologiques | In French | → Specialized or polytechnical colleges |
| DHS | Département Hyperfréquences et Semiconducteurs | In French | → Electronics → Telecommunications |
| DHYCA | Direction des Hydrocarbures | In French | → Mining → 665 |
| DIASP | Dipartimento di Ingegneria Aeronautica e Spaziale | In Italian | → Aeronautics, aircraft → Astronautics |
| DICBM | Defense Intercontinental Ballistic Missile | In English | → Military engineering |
| DICE | Digital Innovation through Cooperation in Europe | In English | → Computer science → Europe |
| DICE | Danube Integrated Circuit Engineering | In English | → Electronics |
| DICORAP | Directional Controlled Rocket-Assisted Projectile | In English | → Military engineering |
| DICT | Déclaration d'Intention de Commencement de Travaux | In French | → Civil engineering → Construction |
| DIDEME | Direction de la Demande et des Marchés Énergétiques | In French | → Energy economics |
| DIDS | Defense Integrated Data System | In English | → Military engineering |
| DIDSIM | Defense-In-Depth Simulation | In English | → Military engineering |
| DIDTHT | Defense-In-Depth Threat | In English | → Military engineering |
| DIE | Division Industrielle Électricité | In French | → Electrical engineering |
| DIELI | Direction des Industries Électroniques et de l'Informatique | In French | → Computer science → Electronics |
| DIEU | Digital Interface Electronics Unit | In English | → Human-computer interaction → Electronics |
| DIGEC | Direction de l'Industrie, du Gaz, de l'Électricité et du Charbon | In French | → Industry, industrial policy → Energy economics → Electrical engineering → Mining |
| DII | Defense Industry Initiative | In English | → Military affairs → Industry, industrial policy → Military engineering |
| DIMATE | Depot Installed Maintenance Automatic Test Equipment | In English | → Mechanical engineering → Maintenance and logistics |
| DIME | Dense Inert Metal Explosive | In English | → Military engineering |
| DIN | Division Ingénierie Nucléaire | In French | → Nuclear technology |
| DINS | Defense Inertial Navigation System | In English | → Military engineering |
| DINUM | Disk Identification Number | In English | → Computer hardware → Electronics |
| DIP | Dual In-line Package | In English | → Electronics |
| DIPS | Dynamic Isotope Power System | In English | → Energy economics |
| DIRCEN | Direction des Centres d'Expérimentations Nucléaires | In French | → Nuclear technology |
| DIRD | Dépense Intérieure de Recherche et de Développement | In French | → Research policy → Public finance |
| DIRDE | Dépense Intérieure de Recherche et Développement des Entreprises | In French | → Research policy → Public finance |
| DIS | Déchets Industriels Spéciaux | In French | → Environmental protection → Environmental technology, water supply, waste management |
| DIS | Defense Industrial Security | In English | → Military affairs → Military engineering |
| DISC | Dutch Institute of Systems and Control (www.disc.tudelft.nl) | In English | → Research institutes → Electrical engineering → Electronics → Netherlands |
| DISCO | Defense Industrial Security Clearance Office | In English | → Military affairs → Military engineering |
| DIT | Diplôme d'Ingénieur Technologue | In French | → Specialized or polytechnical colleges |
| DITEN | Délégation Informatique et Télécommunications de la Branche Énergies | In French | → Computer science → Telecommunications → Energy economics |
| DIUO | Dossier d'Intervention Ultérieure sur l'Ouvrage | In French | → Civil engineering → Construction |
| DKE | Deutsche Kommission Elektrotechnik, Elektronik, Informationstechnik im DIN und VDE | In German | → Organizations and associations → Computer science → Electrical engineering → Electronics → Germany |
| DLO | Director of Launch Operations | In English | → Astronautics |
| DLR | Deutsche Forschungsanstalt für Luft- und Raumfahrt (www.dlr.de) | In German | → Research institutes → Aeronautics, aircraft → Astronautics → Germany |
| DLR | Deutsches Zentrum für Luft- und Raumfahrt (www.dlr.de) | In German | → Research institutes → Aeronautics, aircraft → Astronautics → Germany |
| DM | Development Motor | In English | → Vehicle engineering |
| DMA | Dose Maximale Admissible | In French | → Nuclear technology |
| DMA | Drive Motor Assembly | In English | → Vehicle engineering |
| DME | Direction des Missiles et de l'Espace | In French | → Military affairs → Military engineering → Astronautics |
| DMFC | Direct-Methanol Fuel Cell | In English | → Energy economics → Chemical technology |
| DMJU | Dansk Model Jernbane Unions (www.dmju.dk) | In Danish | → Organizations and associations → Entertainment → Rail transport engineering |
| DMR | Division of Materials Research | In English | → Materials science |
| DMS | Docking Mechanism Subsystem | In English | → Mechanical engineering |
| DMS | Docking Module System | In English | → Mechanical engineering |
| DMSP | Defense Meterological Satellite Program | In English | → Military affairs → Meteorology, climatology → Astronautics |
| DMSP | Defense Meteorological Satellite Program | In English | → Meteorology, climatology → Military engineering → Astronautics |
| DMSS | Defense Meteorological Satellite System | In English | → Meteorology, climatology → Military engineering → Astronautics |
| DMU | Digital Mock-Up | In English | → Computer-based techniques |
| DNA | Direction de la Navigation Aérienne | In French | → Astronautics → Transport and postal services |
| DNA | Defense Nuclear Agency | In English | → Military affairs → Military engineering → Nuclear technology |
| DNN | Distributeurs Non Nationalisés | In French | → Electrical engineering |
| DNO | Descending-Node Orbit | In English | → Astronautics |
| DNS | Departure Nuclear Stage | In English | → Nuclear technology |
| DNW | Deutsch-Niederländische Windkanäle | In German | → Aerodynamics → Aeronautics, aircraft |
| DOAAT | Direction Optimisation Amont/Aval et Trading | In French | → Electrical engineering → Energy economics → Financial markets |
| DOC | Drift-Orbit Correction | In English | → Astronautics |
| DODSTP | Department of Defense Standard Satellite | In English | → Military affairs → Astronautics |
| DOE | Department of Energy | In English | → Central administration → Energy economics |
| DOE | Dossier des 0uvrages Exécutés | In French | → Civil engineering → Construction |
| DOE | Dossier des Ouvrages Exécutés | In French | → Civil engineering → Construction |
| DOI | Descent Orbit Insertion | In English | → Astronautics |
| DOI | Direct Orbit Insertion | In English | → Astronautics |
| DoLAEM | Dobrich Local Agency for Energy Management | In English | → Energy economics |
| DOMSAT | Domestic Satellite | In English | → Astronautics |
| DORD | Deep Ocean Resources Development Company | In English | → Marine research, oceanography → Mining |
| DORIS | Determination of Orbit Radio Positioning Integrated from Shuttle | In English | → Telecommunications → Astronautics |
| DORIS | Doppler Orbitography and Radiopositioning Integrated by Satellite | In English | → Astronautics |
| DOWNVInD | Distant Offshore Wind farms with No Visual Impact in Deepwater | In English | → Energy economics |
| DPA | Departamentul pentru Armamente | In Romanian | → Public administration, government → Military engineering |
| DPAC | Direction des Programmes Aéronautiques Civils | In French | → Aeronautics, aircraft |
| DPCL | Dedicated Payload Communication Link | In English | → Telecommunications → Astronautics |
| DPCT | Diplôme de Premier Cycle Technologique | In French | → Specialized or polytechnical colleges |
| DPGF | Décomposition du Prix Global et Forfaitaire | In French | → Prices → Civil engineering → Construction |
| DPM | Dinamika i Prochnost' Mashin | In English | → Serial publications, periodicals |
| DPN | Division Production Nucléaire | In French | → Nuclear technology |
| DPP | Division Particuliers et Professionnels | In French | → Trade → Electrical engineering |
| DPS | Department of Defense Project Specification | In English | → Military affairs → Military engineering |
| DPS | Descent Propulsion System | In English | → Astronautics |
| DPTH | Division Productions Thermiques et Hydrauliques | In French | → Energy economics |
| DRAC | Drone de Renseignement Au Contact | In French | → Military engineering |
| DRCR | Direction des Routes et de la Circulation Routière | In French | → Civil engineering → Transport and postal services |
| DRE | Délégation Réseau Électricité | In French | → Electrical engineering |
| DREF | Dose Rate Effectiveness Factor | In English | → Nuclear technology |
| DREIF | Direction Régionale de l'Équipement d'Île-de-France | In French | → Regional administration → Civil engineering → France |
| DRET | Direction de la Recherche et de la Technologie | In French | → Research policy → Public administration, government |
| DRET | Direction des Recherches, Études et Techniques | In French | |
| DRIE | Deep Reactive Ion Etching | In English | |
| DRM | Diamond and Related Materials | In English | → Serial publications, periodicals → 62039 |
| DRO | Dielectric Resonator Oscillator | In English | → Physics → Electrical engineering |
| DRRA | Disjoncteur Réenclencheur en Réseau Aérien | In French | → Electrical engineering |
| DRRC | Disjoncteur Réenclencheur en Réseau en Cabine | In French | → Electrical engineering |
| DRRT | Délégué(e) Régional(e) à la Recherche et à la Technologie | In French | → Research policy |
| DRRT | Délégation Régionale à la Recherche et à la Technologie | In French | → Research policy → Public administration, government |
| DRS | Data Relay Satellite | In English | → Data → Astronautics |
| DRSS | Data Relay Satellite System | In English | → Data → Astronautics |
| DRZ | Demontage- und Recycling-Zentrum | In German | → Environmental technology, water supply, waste management |
| DS3 | Deep-Space Surveillance System | In English | → Astronautics |
| DSA | Defense Supply Agency | In English | → Military affairs → 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 → Astronautics |
| DSCS | Defense Satellite Communications System | In English | → Military engineering → Astronautics |
| DSCS | Defense Support Communication Satellite | In English | → Military engineering → Astronautics |