| Acronym | Sense | Language | Topics |
|---|---|---|---|
| RCMP | Royal Canadian Mounted Police | In English | → Police → Canada |
| RCN | Requirements Change Notice | In English | |
| RCN | Rockwell Communication Network | In English | → Telecommunications |
| RCNM | Racing Club Narbonne Méditerranée | In French | → Organizations and associations → Football and rugby |
| RCO | Rencontres de Chimie Organique | In French | → Congresses → Organic chemistry |
| RCO | Radio Comptoir de l'Ouest | In French | → Trade → Electronics |
| RCO | Rugby Club Orléans (www.rcorleans.com) | In French | → Organizations and associations → Football and rugby → France |
| RCO | Rencontres Chimiques de l'Ouest | In French | → Congresses → Chemistry |
| RCO | Renseignement Contraignant sur l'Origine | In French | → Trade |
| RCO | Rugby Club Orangeois | In French | → Organizations and associations → Football and rugby |
| RCO | Retraite Complémentaire Obligatoire | In French | → Insurance → Labour, labour economics |
| RCP | Réanimation cardiopulmonaire | In French | → Traumatology |
| RCP | Résumé des Caractéristiques du Produit = SPC | Summary of Product Characteristics | In English |
In French | → Pharmacology, toxicology |
| RCP | Radiation Constraints Panel | In English | |
| RCP | Right Circular Polarizer | In English | → Optics |
| RCP | Rugby Club de Plabennec | In French | → Organizations and associations → Football and rugby |
| RCP | Rich Client Platform | In English | → Software |
| RCP | Rémunération pour Copie Privée | In French | → Software → Cinema, movies |
| RCP | RCP : Réanimation Cardio-Pulmonaire | In French | → Cardiology → Traumatology |
| RCP | Reação em Cadeia da Polimerase = PCR | Polymerase Chain Reaction | In English = ACP | Amplification en Chaîne par Polymérase | In French = TAN | Test d'amplification des Acides Nucléiques | In French = ПЦР | Полимера́зная Цепна́я Реа́кция | In Russian = PĈR | Polimeraza Ĉen-Reakcio | In Esperanto = PZR | Polimeraz Zəncir Reaksiyası | In Azerbaijani = ՊՇՌ | Պոլիմերազային շղթայական ռեակցիան | In Armenian = PGR | Polimerazinė Grandininė Reakcija | In Lithuanian = ПГУ | Полимеразын Гинжин Урвал | In Mongolian = ПЛР | Полімеразна Ланцюгова Реакція | In Ukrainian |
In Portuguese | → Biotechnology → Genetics → Enzymes |
| RCPC | Regional Community Policing Center | In English | |
| RCPGs | Récepteurs Couplés aux Protéines-G | In French | → Proteins |
| RCR | Requirements Change Request | In English | |
| RCR | Racing Club Rotterdam | In Dutch | → Organizations and associations → Sport, physical exercises → Netherlands |
| RCRA | Resource Conservation and Recovery Act | In English | |
| RCS | Reaction Control System | In English | |
| RCS | Revision Control System | In French | → Software |
| RCS | Registre du Commerce et des Sociétés | In French | → Economic policy → Trade |
| RCS | Reentry Control System | In English | → Astronautics |
| RCS | Requirements Collection System | In English | |
| RCS | Racing Club de Strasbourg | In French | → Organizations and associations → Sport, physical exercises |
| RCS | Racing Club Souburg | In Dutch | → Organizations and associations → Sport, physical exercises |
| RCS | Report Control Symbol | In English | |
| RCS | Registre Commercial des Sociétés | In French | → Economics |
| RCS | Roux-Combaluzier-Schindler | In French | → Mechanical engineering |
| RCSC | Reaction Control Subsystem Controller | In English | |
| RCSO-TIC | Réseau de Compétences de Suisse Occidentale en Technologie de l'Information et de la Communication | In French | → Computer science → Telecommunications → Switzerland |
| RCT | Radiometric Calibration Target | In English | |
| RCTT | Réduction Collective du Temps de Travail | In French | → Personnel management → Labour, labour economics |
| RCU | Remote Control Unit | In English | |
| RCV | Racing Club Verheul | In Dutch | → Organizations and associations → Sport, physical exercises |
| RCVH | Russian Centre of Vexillology and Heraldry | In English | → Organizations and associations → Genealogy → Flags, banners → Russia |
| RCVMT | Rugby Club Vif Monestier Trièves | In French | → Organizations and associations → Football and rugby |
| RCVS | Remote Control Video Switch | In English | |
| RCVS | Royal College of Veterinary Surgeons (www.rcvs.org.uk) | In English | → Organizations and associations → Veterinary medicine → United Kingdom |
| RCYC | Royal Canadian Yacht Club | In English | → Organizations and associations → Sport, physical exercises → Canada |
| RCYC | Royal Cape Yacht Club | In English | → Organizations and associations → Sport, physical exercises |
| RCYC | Royal Corinthian Yacht Club | In English | → Organizations and associations → Sport, physical exercises |
| RCYC | Royal Cork Yacht Club | In English | → Organizations and associations → Sport, physical exercises |
| RCYC | Ravena Coeymans Yacht Club | In English | → Organizations and associations → Sport, physical exercises |
| RCYC | River City Youth Chorale | In English | → Organizations and associations → Music |
| RCYC | Richmond County Yacht Club | In English | → Organizations and associations → Sport, physical exercises |
| RCZ | Racing Club Zaandam | In Dutch | → Organizations and associations → Sport, physical exercises |
| RD | Rassemblement Démocrate | In French | → Political parties and movements |
| RD | Radiation Detection | In English | |
| RD | Reference Designator | In English | |
| RD | Released Drawing | In English | |
| RD | Requirements Document | In English | |
| RD | Root Diameter | In English | |
| RD | Rétinopathie Diabétique | In French | → Pathology → Ophthalmology |
| RD | Route Départementale | In French | → Civil engineering and land transport → Transport and postal services |
| RDA | Republik Demokratel Alamagn = GDR | Germana Demokratia Respubliko | In Esperanto = RDA | República Democrática Alemana | In Spanish = RDA | République Démocratique Allemande | In French = DDR | Deutsche Demokratische Republik | In German = DDR | Duitse Demokratiese Republiek | In Afrikaans = NDR | Njemačka Demokratska Republika | In Bosnian = RDA | República Democràtica Alemanya | In Catalan = NDR | Německá demokratická republika | In Czech = ГДР | Германи Демократиллĕ Республики | In Chuvash = ΛΔΓ | Λαϊκή Δημοκρατία της Γερμανίας | In Greek = GDR | German Democratic Republic | In English = AED | Alemaniar Errepublika Demokratikoa | In Basque = NDK | Német Demokratikus Köztársaság | In Hungarian = RDT | Repubblica Democratica Tedesca | In Italian = DDR | Duitse Democratische Republiek | In Dutch = RDG | Republica Democrată Germană | In Romanian = DAC | Demokratik Alman Cumhuriyeti | In Turkish |
In Breton | → Geography → Germany |
| RDA | República Democrática Alemana = GDR, DDR, NDR, ГДР, ΛΔΓ, AED, NDK, RDT, RDG, DAC (look above) |
In Spanish | → Geography → Germany |
| RDA | République Démocratique Allemande = GDR, DDR, NDR, ГДР, ΛΔΓ, AED, NDK, RDT, RDG, DAC (look above) |
In French | → Geography → Germany |
| RDA | Rassemblement Démocratique Africain | In French | → Political parties and movements → Africa |
| RDA | República Democràtica Alemanya = GDR, DDR, NDR, ГДР, ΛΔΓ, AED, NDK, RDT, RDG, DAC (look above) |
In Catalan | → Geography → Germany |
| RDA | Recommended Dietary Allowances |
In English | → Personal health and hygiene |
| RDA | Rich Desktop Application | In English | → Software |
| RDA | Remote Data Access | In English | → Data → Networks, communication |
| RDA | Resident Data Area | In English | → Data |
| RDA | Recommended Daily Allowance = ADH | Aanbevolen Dagelijkse Hoeveelheid | In Dutch = ADI | Acceptabel Daglig Indtagelse | In Danish = RDI | Rekommenderat Dagligt Intag | In Swedish = ANC | Apports Nutritionnels Conseillés | In French |
In English | → Nutrition |
| RDA | Research, Development and Acquisition | In English | → Research policy |
| RDBE | Rönesans Değişim Bilimleri Enstitüsü | In Turkish | |
| RDBMS | Relational Database Management System |
In English | → Data → Knowledge management |
| RDBP | Robinet Déclencheur Basse Pression | In French | |
| RDC | République Démocratique du Congo | In French | → Geography |
| RDC | Reference Designator Code | In English | |
| RDC | Request for Design Change | In English | |
| RDC | Request for Document Change | In English | |
| RDC | Request for Drawing Changes | In English | |
| RDC | RODA Daventria Combinatie | In Dutch | → Organizations and associations → Sport, physical exercises |
| RDC | Rez-De-Chaussée | In French | → Accommodation → Construction |
| RDC | Remote Diagnostics Center | In English | → Computer science |
| RDCIC | Rémunération de la Disponibilité et de la Contribution Individuelle des Cadres | In French | → Personnel management → Labour, labour economics |
| RDCMP | Recent Development in Condensed Matter Physics | In English | → Serial publications, periodicals → Physics of condensed matter |
| RDCS | Reconfiguration Data Collection System | In English | |
| RDD | Requirements Definition Document | In English | |
| RDDL | Resource Directory Description Language | In English | → Programming languages → Data |
| RDF | Resource Description Framework | In English | → Data → Networks, communication |
| RDF | Ressource Description Format | In English | → Data |
| RDF | Radio Direction Finding | In English | → Telecommunications |
| RDF | Radio Direction Finder | In English | → Telecommunications |
| RDF | Resource Data File | In English | → Files → Data |
| RDF | Refuse-Derived Fuel | In English | → Chemicals |
| RDFP | Rural Development Foundation of Pakistan | In English | → Foundations → Development → Regional planning → Pakistan |
| RDG | Republica Democrată Germană = RDA, GDR, DDR, NDR, ГДР, ΛΔΓ, AED, NDK, RDT, DAC (look above) |
In Romanian | → Geography → Germany |
| RDGS | Reconfiguration Display Generation System | In English | → Human-computer interaction |
| RDI | Rekommenderat Dagligt Intag = RDA, ADH, ADI, ANC (look above) |
In Swedish | → Nutrition |
| RDI | Radar Doppler à Impulsions | In French | → Engineering, technology |
| RDL | Reconfigurable Design Language | In English | |
| RDM | Real-Time Data Manager | In English | → Software → Data |
| RDM | Rotterdamse Droogdok Maatschappij | In Dutch | → Organizations and associations → Sport, physical exercises → Netherlands |
| RDM | Repeats Detection Method | In English | → Algorithms → Computer-based techniques → Biotechnology |
| RDO | Relational Database Operator | In English | → Data |
| RDO | Radio Dom Ostankino | In Russian | → Telecommunications |
| RDOC | Reference Designation Overflow Code | In English | |
| RDOS | Real-Time Disk Operating System | In English | → Operating systems |
| RDP | Requirements Data Plan | In English | |
| RDP | Requirements Development Plan | In English | |
| RDP | Régiment de Dragons Parachutistes | In French | → Military affairs |
| RDR | Raw Data Recorder | In English | → Data |
| RDR | Review of Derivatives Research | In English | → Serial publications, periodicals |
| RDR | Règlement de Développement Rural | In French | → Agricultural sciences → Regional planning |
| RDS | Rocketdyne Digital Simulator | In English | → Astronautics |
| RDS | Radio Data Systeem | In English | → Telecommunications |
| RDS-TMC | Radio Data System - Traffic Message Channel | In English | → Telecommunications → Transport and postal services |
| RDT | Réseau de Développement Technologique | In French | → Engineering, technology |
| RDT | Repubblica Democratica Tedesca = RDA, GDR, DDR, NDR, ГДР, ΛΔΓ, AED, NDK, RDG, DAC (look above) |
In Italian | → Geography → Germany |
| RDT&E | Research, Development, Test, and Evaluation | In English | |
| RDTC | Réseau de Développement Technologique Corse | In French | → Engineering, technology |
| RDUES | Research and Development Unit for English Studies | In English | → Research institutes → Language, linguistics, literature |
| RDW | Response Data Word | In English | |
| RDW | Return Data Word | In English | |
| RDW | Rijks Dienst voor het Wegverkeer (www.rdw.nl) | In Dutch | → Central administration → Vehicle engineering → Netherlands |
| RDX | Cyclotrimethyleentrinitramine | In Dutch | → Chemicals |
| RE | Revue d'Égyptologie | In French | → Serial publications, periodicals → Archeology |
| RE | Reproductive Endocrinologist | In English | → Reproductive biology |
| RE | Resolution Element | In English | |
| RE | Responsible Engineer | In English | → Engineering, technology |
| RE&T | Research Engineering and Test | In English | |
| REA | Rocket Engine Assembly | In English | → Astronautics |
| ReAA | Recherches Aéronautiques et Aérospatiales | In French | → Serial publications, periodicals → Aeronautics, aircraft → Astronautics |
| REACCIUN | Red Académica de Centros de Investigación y Universidades Nacionales | In Spanish | → Computer science → Education → Telecommunications |
| REACH | Registration, Evaluation and Authorization of Chemicals | In English | → Chemicals |
| REACH | Remote Assertive Community Homecare | In English | |
| REACM | Regional Energy Agency of Central Macedonia | In English | → Energy economics |
| REAM | Rocket Engine Assembly Module | In English | → Astronautics |
| REB | Réacteur à Eau Bouillante = BWR | Boiling Water Reactor | In English = SWR | Siedewasserreaktor | In German |
In French | → Nuclear technology |
| REB | Radiation and Environmental Biophysics | In English | → Serial publications, periodicals → Threats to the environment → Biochemistry, biophysics |
| REC | Regional Environmental Center for Central and Eastern Europe | In English | → Threats to the environment |
| REC | Regionale Expertisecentra | In Dutch | → Education |
| REC | Regional Electricity Company | In English | → Energy economics → Electrical engineering |
| RecAug | Recherches Augustiniennes | In French | → Serial publications, periodicals → Religion, theology |
| RECIFE | REcherche sur la Capacité des Infrastructures FErroviaires | In French | → Rail transport engineering → Rail transport → France |
| RECITS | Recueil des Eléments de Connaissances Interdisciplinaires sur les Transports et leur Sécurité | In French | → Transport and postal services |
| RECON | Remote Console | In English | → Human-computer interaction |
| RECONS | Research Consortium on Nearby Stars | In English | → Astronomy |
| RECOVER | Research on Coping with Vulnerability to Environmental Risk | In English | → Environmental protection → Threats to the environment |
| RECP | Request for Engineering Change Proposal | In English | |
| RECS | Representative Environmental Control System | In English | |
| RecSR | Recherches de Sciences Religieuses | In French | → Serial publications, periodicals → Religion, theology |
| REDAC | Rockwell Electronic Design Analysis Code | In English | → Electronics |
| REDB | Rockwell Engineering Data Base | In English | → Engineering, technology |
| RedCYT | Red Científica y Tecnológica | In Spanish | → Computer science → Mathematics and natural sciences → Applied sciences, technology → Telecommunications |
| RéDI | Réseau des Doctorants de l'INRETS | In French | → Organizations and associations → Higher education, universities → Transport and postal services |
| REE | Relevé d'Exécution d'Essais | In French | |
| REEEP | Renewable Energy and Energy Efficiency Partnership | In English | → Energy economics |
| REENIC | Russian and East European Network Information Center | In English | |
| REEP | Radio Engineering and Electronic Physics | In English | → Serial publications, periodicals → Telecommunications → Electronics |
| REER | Régime Enregistré d'Épargne-Retraite | In French | → Finance → Labour, labour economics |
| REF | Renkontiĝo de Esperantistaj Familioj | In Esperanto | → Congresses → Artificial languages (linguistics) |
| RefERE | Réseau francophone international de recherche en Éducation Relative à l'Environnement (www.refere.uqam.ca) | In French | → Organizations and associations → Education → Threats to the environment |
| REFIDI | Résidus d'Épuration des Fumées d'Incinérateur de Déchets Industriels | In French | → Environmental technology, water supply, waste management |
| REFIOM | Résidus d'Épuration des Fumées d'Incinérateur d'Ordures Ménagères | In French | |
| REFIOM | Résidu de Fumée d'Incinération d'Ordures Ménagères | In French | → Environmental technology, water supply, waste management |
| REFLEX | Randomised Evaluation oF Long-term Efficacy rituXimab | In English | → Pharmacology, toxicology |
| REFRL | Radio Free Europe/Radio Liberty | In English | |
| REG | Revue des Études Grecques | In French | → Serial publications, periodicals → Language, linguistics, literature |
| REG | Régie des Eaux de Grenoble | In French | → Environmental technology, water supply, waste management |
| REG | Résistances Électriques et Gazières | In French | → Electrical engineering |
| REGBIE | Regional Bioenergy Initiatives around Europe | In English | → Energy economics |
| REI | Revue des Études Islamiques | In French | → Serial publications, periodicals → Islam |
| REI | Runway-End Identification | In English | |
| REI | Recherche Exploratoire et Innovation | In French | → Research policy |
| REIL | Runway-End Identification Lights | In English | |
| REIO | Renewable Energy Information Office | In English | → Energy economics |
| REJ | Revue des Études Juives | In French | → Serial publications, periodicals → Social welfare |
| REJM | Rusia Esperantista Junulara Movado | In Esperanto | → Organizations and associations → Artificial languages (linguistics) → Russia |
| REK | Räumliches Entwicklungskonzept | In German | → Regional planning |
| REKAM | (Stichting) Regionale Kabeltelevisie Midden-Holland (www.rekam.nl) | In Dutch | → Foundations → Telecommunications → Netherlands |
| REL | Revue des Études Latines | In French | → Serial publications, periodicals → Language, linguistics, literature |
| REL | Rights Expression Language | In English | → Artistic property |
| RelSRev | Religious Studies Review | In English | → Serial publications, periodicals → Religion, theology |
| REM | Rapid Eye Movement | In English | → Biological sciences |
| REM | Release Engine Module | In English | |
| REM | Release Escape Mechanism | In English | |
| REM | Release-Engagement Monitor | In English | |
| REM | Rocket Engine Module | In English | → Astronautics |
| REM | Roentgen Equivalent Man | In English | → Radioactivity → Medicine |
| REM | Remember Every Moment | In English | → Music |
| REM | Renseignement d'État-Major | In French | → Military affairs |
| REMIA | Rooij's Electrische Melangeer Inrichting Amersfoort | In Dutch | |
| REMMM | Revue du Monde Musulman et de la Méditerranée | In French | → Serial publications, periodicals → Area studies |
| REMMM | Revue des Mondes Musulmans et de la Méditerranée | In French | → Serial publications, periodicals → Area studies |
| REMO | Reëel en Moreel | In Dutch | → Organizations and associations → Sport, physical exercises |
| REMPARE | RE-ingénierie des Merlons de Protection par composants Anthropiques REcyclés | In French | → Construction |
| REN-ISAC | Research and Education Networking Information Sharing and Analysis Centre | In English | → Education → Mathematics and natural sciences |
| RENAEL | Rete Nazionale Agenzie Energetiche Locali | In Italian | → Energy economics |
| RENAISSANCE | Renewable ENergy Acting in SuStainable And Novel Community Enterprises | In English | → Energy economics |
| RENAR | Asociația de Acreditare din România (https://www.renar.ro) | In Romanian | → Associations → Diagnostics |