Abbreviations in English
- Code
-
Meaning
Language
Themes and places
- OPDS
-
Organ on Politics, Defence and Security
In English
- OPE
-
Operational Processing Equipment
In English
- OPEC
-
Organization of the Petroleum Exporting Countries
OPEC is equivalent to OPEP (Organisation des Pays Exportateurs de Pétrole) in French, OPEL (Organizaĵo de Petrol-Eksportaj Landoj) in Esperanto, OPEP (Organização dos Países Exportadores de Petróleo) in Portuguese, OPEP (Organización de Países Esportadores de Petroleu) in Asturian, OPEP (Organización de Países Exportadores de Petróleo) in Spanish, OPEP (Organització de Països Exportadors de Petroli) in Catalan, and ОПЕК (Организација на земји извознички на нафта и нафтени деривати) in Macedonian.
In English
- OPEIU
-
Office and Professional Employees International Union
In English
- OPEX
-
OPerational Expenditure
In English
- OPF
-
Orbiter Processing Facility
In English
- OPGL
-
Osteoprotegerin Ligand
In English
- OPI
-
Operations Procedure Instruction
In English
- OPI
-
Orbiter Payload Interrogator
In English
- OPIDF
-
Operational Planning Identification File
In English
- OPIS
-
Orbiter Prime Item Specification
In English
- OPK
-
Ovulation Predictor Kit
In English
- OPL
-
Open Problem List
In English
- OPL
-
Orbiter Project Parts List
In English
- OPL
-
Open Proxy List
In English
- OPLF
-
Orbiter Processing and Landing Facility
In English
- OPM
-
Operations Procedure Manual
In English
- OPM
-
Outer Planet Mission
In English
- OPM
-
Office of Personnel Management
In English
- OPML
-
Outline Processor Markup Language
The abbreviation OPML (Outline Processor Markup Language) includes the abbreviation ML (Markup Language).
In English
- OPN
-
Osteopontin
In English
- OPO
-
Orbiter Project Office
The abbreviation OPO (Orbiter Project Office) includes the abbreviation PO (Project Office).
In English
- OPOV
-
Oxidizer Preburner Oxidizer Valve
In English
- OPPAR
-
Orbiter Project Parts Authorization Request
In English
- OPPF
-
Oxford Protein Production Facility
In English
- OPPS
-
Operations Planning and Project Support
In English
- OPR
-
Office of Primary Responsibility
In English
- OPR
-
Operations Planning Review
In English
- OPR
-
Orbiter Payload Recorder
In English
- OPR
-
Oxygen Pressure Regulator
In English
- OPRV
-
Oxygen Pressure Relief Valve
In English
- OPS
-
Operational Sequence
In English
- OPS
-
Orbiter Project Schedule
In English
- OPS
-
Oxygen Purge System
In English
- OPSA
-
OSSTMM Professional Security Analyst
In English
- OPSDB
-
Operations Data Base
The abbreviation OPSDB (Operations Data Base) is included in the abbreviation OPSDBA (Operations Data Base Administrator), and it includes the abbreviation DB (Data Base).
In English
- OPSDBA
-
Operations Data Base Administrator
The abbreviation OPSDBA (Operations Data Base Administrator) includes abbreviations DB (Data Base) and OPSDB (Operations Data Base).
In English
- OPSE
-
OSSTMM Professional Security Expert
In English
- OPSEC
-
Operational Security
In English
- OPSS
-
Orbital Propellant Storage Subsystem
In English
- OPST
-
OSSTMM Professional Security Tester
In English
- OPT
-
Operational Pressure Transducer
In English
- OPT
-
Open Pre-trained Transformer
In English
- OPTB
-
Operational Program Time Base
In English
- OPV
-
Offshore Patrol Vessel
In English
- OPWC
-
Organisation for the Prohibition of Chemical Weapons (www.opcw.org)
OPWC is equivalent to OIAC (Organisation pour l'Interdiction des Armes Chimiques) in French.
In English
- OPWS
-
Orbital Payload Work Station
In English
- OQE
-
Optical and Quantum Electronics
In English
- OQL
-
Object Query Language
In English
- OR
-
Organized Research
In English
- ORA
-
Operational Requirements Analysis
In English
- ORAC
-
Oxygen Radical Absorbance Capacity
In English
- ORAM
-
Output Random Access Memory
The abbreviation ORAM (Output Random Access Memory) includes the abbreviation RAM (Random Access Memory).
In English
- ORB
-
Object Request Broker
In English
- ORB
-
Operations Review Board
The abbreviation ORB (Operations Review Board) includes the abbreviation RB (Review Board).
In English
- ORC
-
Operations Request Card
In English
- ORCHIS
-
Oak Ridge Computerized Hierarchical Information System
In English
- ORCUS
-
Orbital Recording Capability and Update System
In English
- ORD
-
Operational Readiness Data
In English
- ORD
-
Operational Ready Data
In English
- ORD
-
Operations Requirements Document
The abbreviation ORD (Operations Requirements Document) includes the abbreviation RD (Requirements Document).
In English
- ORD
-
Orbital Requirements Document
The abbreviation ORD (Orbital Requirements Document) includes the abbreviation RD (Requirements Document).
In English
- ORD
-
Office of Rare Diseases (http://rarediseases.info.nih.gov)
In English
- ORDBMS
-
Object-Relational Database Management System
In English
- ORDI
-
Ontology Representation and Data Integration
In English
- ORE
-
Output Request Element
In English
- ORF
-
Observer Research Foundation
In English
- ORFEUS
-
Observatories and Research Facilities for EUropean Seismology (http://orfeus.knmi.nl)
In English
- ORI
-
Operational Readiness Inspection
In English
- ORI
-
Ocean Research Institute (www.ori.u-tokyo.ac.jp)
In English
- ORIENT
-
Oriental Research Infrastructure to European Networks
In English
- ORIS
-
Office of Research and Information Systems
In English
- ORLA
-
Optimum Repair Level Analysis
The abbreviation ORLA (Optimum Repair Level Analysis) includes the abbreviation RLA (Repair Level Analysis).
In English
- ORM
-
Operational Reactivity Margin
In English
- ORP
-
Oral Rehydration Point
ORP is equivalent to PRO (Point de Réhydratation Orale) in French.
In English
- ORP
-
OFS Retransmission Processor
In English
- ORP
-
Optional Retirement Program
In English
- ORR
-
Operational Readiness Review
The abbreviation ORR (Operational Readiness Review) includes the abbreviation RR (Readiness Review).
In English
- ORR
-
Operations Requirements Review
The abbreviation ORR (Operations Requirements Review) is included in the abbreviation PORR (Preliminary Operations Requirements Review), and it includes the abbreviation RR (Requirements Review).
In English
- ORRCA
-
Ontario Research Centre for Computer Algebra (https://orcca.on.ca/)
In English
- ORROE
-
Occasional Reports of the Royal Observatory Edinburgh
In English
- ORS
-
Outer Root Sheath
In English
- ORS
-
Orbital Refueling System
In English
- ORS
-
Orbital Reservicing System
In English
- ORS
-
Orbital Resupply System
In English
- ORSDI
-
Oak Ridge Selective Dissemination of Information
In English
- ORT
-
Operational Readiness Test
In English
- ORT
-
Orbit Readiness Test
In English
- ORU
-
Orbital Replaceable Unit
In English
- ORU
-
Orbital Replacement Unit
In English
- ORV
-
Orbital Research Vehicle
In English
- OS
-
On-orbit Station
In English
- OS
-
Operating Software
In English
- OS
-
Operating System
The abbreviation OS (Operating System) is included in abbreviations such as ECOS (Experiment Computer Operating System), FMA (Finanzmarktaufsicht), FOS (Factored Operating System), COS (Cray Operating System), DROPS (Dresden Real-Time Operating System Project), DTOS (Distributed Trusted Operating System), BOS (Base Operating System), WOS (Web Operating System), ROSS/V (RSTS/E Operating System Simulator for VAX), BDOS (Basic Disk Operating System), CNOS (Communication Network Operating System), RTOS (Real-Time Operating System), TOS (Tape Operating System), PC-DOS (Personal Computer Disk Operating System), MOS (Machine Operating System), QDOS (Quick and Dirty Operating System), BOS (Backup Operating System), TOS (Test Operating System), SCOS (Subsystem Computer Operating System), RDOS (Real-Time Disk Operating System), DOS (Disk Operating System), POSIX (Portable Operating System Interface), OSID (Operating System Interface Definition), MSDOS (Mass Storage Digital Operating System), IDOS (Integrated Display Operating System), HOS (Hybrid Operating System), GCOS (Ground Computer Operating System), MS-DOS (Microsoft Disk Operating System), FCOS (Flight Control Operating System), FCOS (Flight Computer Operating System), EOS (Extended Operating System) and COS (Console Operating System).
In English
- OS
-
Orbiter CEI Specification
In English
- OS
-
Open Source
The abbreviation OS (Open Source) is included in abbreviations such as OSI (Open Source Initiative), OSDL (Open Source Development Labs), OSDL (Open Source Development Lab), FLOSS (Free/Libre Open Source Software), OSIM (Open Source In Morocco), GOSCON (Government Open Source Conference), OSSTMM (Open Source Security Testing Methodology Manual), OSEM (Open Source Event Manager) and OSS (Open Source Software).
In English
- OSA
-
Oklahoma Sociological Association
In English
- OSA
-
Operational Support Area
The abbreviation OSA (Operational Support Area) includes the abbreviation SA (Support Area).
In English
- OSA
-
Ordered-Subset Analysis
In English
- OSA
-
Operational Support Airlift
In English
- OSAJ
-
Optical Society of America Journal
In English
- OSAJI
-
Optical Society of America Journal - Optics and Image Science
In English
- OSALL
-
Organisation of South African Law Libraries
In English
- OSART
-
Operational Safety Assessment Review Team
In English
- OSB
-
Order of Saint Benedict
In English
- OSB
-
Orientated Strand Board
In English
- OSBL
-
Online Stochastic Batch Learning
In English
- OSC
-
Orbital Sciences Corporation
In English
- OSC
-
Order of Saint Camillus
In English
- OSC
-
Operations Support Center
In English
- OSC
-
Operations Support Contract
In English
- OSC
-
Optical Signatures Code
In English
- OSCAR
-
Orbiting Satellite Carrying Amateur Radio
In English
- OSCAR
-
Open Super-large Crawled ALMAnaCH coRpus
In English
- OSCE
-
Organization for Security and Cooperation in Europe (www.osce.org)
OSCE is equivalent to OSCE (Organisation pour la Sécurité et la Coopération en Europe) in French.
In English
- OSCF
-
Operations Support Computing Facility
In English
- OSCN
-
Orbiter Specification Change Notice
The abbreviation OSCN (Orbiter Specification Change Notice) includes abbreviations CN (Change Notice) and SCN (Specification Change Notice).
In English
- OSCR
-
Orbiter Software Change Request
The abbreviation OSCR (Orbiter Software Change Request) includes abbreviations SC (Software Change), CR (Change Request) and SCR (Software Change Request).
In English
- OSCRS
-
Orbital Spacecraft Consumables Resupply System
In English
- OSD
-
Office of the Secretary of Defense
In English
- OSD
-
Open Source Definition
In English
- OSD
-
Object Storage Device
In English
- OSDH
-
Orbiter System Definition Handbook
In English
- OSDL
-
Open Source Development Labs
The abbreviation OSDL (Open Source Development Labs) includes the abbreviation OS (Open Source).
OSDL is equivalent to OSDL (Open Source Development Lab) in English.
In English
- OSDL
-
Open Source Development Lab
The abbreviation OSDL (Open Source Development Lab) includes the abbreviation OS (Open Source).
OSDL is equivalent to OSDL (see above).
In English
- OSDPE
-
Office of the Secretary of Defense Program Element
In English
- OSE
-
Open System Environment
In English
- OSE
-
Operating Support Equipment
The abbreviation OSE (Operating Support Equipment) includes the abbreviation SE (Support Equipment).
In English
- OSE
-
Orbital Support Equipment
The abbreviation OSE (Orbital Support Equipment) includes the abbreviation SE (Support Equipment).
In English
- OSEM
-
Open Source Event Manager
The abbreviation OSEM (Open Source Event Manager) includes the abbreviation OS (Open Source).
In English
- OSERA
-
Ohio Scientific Education & Research Association
In English
- OSERS
-
Office of Special Education and Rehabilitative Services
In English
- OSF
-
Open Software Foundation
In English
- OSF
-
Orbiter Simulation Facility
In English
- OSGi
-
Open Services Gateway initiative (www.osgi.org)
In English
- OSH
-
Oblates of the Sacred Heart
In English
- OSHA
-
Occupational Safety and Health Administration (https://www.osha.gov/)
In English
- OSHA
-
Occupational Safety and Health Act
In English
- OSHA
-
Operating and Support Hazard Analysis
The abbreviation OSHA (Operating and Support Hazard Analysis) includes the abbreviation HA (Hazard Analysis).
In English
- OSI
-
Open Systems Interconnection
In English
- OSI
-
Open Source Initiative (https://opensource.org/)
The abbreviation OSI (Open Source Initiative) includes the abbreviation OS (Open Source).
In English
- OSI
-
Open Society Institute
In English
- OSI
-
Office of Strategic Influence
In English
- OSI
-
Ordnance Survey Ireland
In English
- OSID
-
Operating System Interface Definition
The abbreviation OSID (Operating System Interface Definition) includes the abbreviation OS (Operating System).
In English
- OSID
-
Open Systems and Information Dynamics
In English
- OSIM
-
Open Source In Morocco
The abbreviation OSIM (Open Source In Morocco) includes the abbreviation OS (Open Source).
In English
- OSITOP
-
Open Systems Interconnection/Technical and Office Protocols
In English
- OSJaJ
-
Oceanographical Society of Japan Journal
In English
- OSM
-
On-Orbit Spares Model
In English
- OSM
-
Operational Status Monitoring
In English
- OSM
-
Orbiter Service Module
The abbreviation OSM (Orbiter Service Module) includes the abbreviation SM (Service Module).
In English
- OSMP
-
Operational Support Maintenance Plan
In English
- OSO
-
Ocean Systems Operation
In English
- OSO
-
Orbiting Solar Observatory
In English
- OSOP
-
Orbiter Systems Operating Procedure
The abbreviation OSOP (Orbiter Systems Operating Procedure) includes the abbreviation OP (Operating Procedure).
In English
- OSP
-
Office of Space Planning
In English
- OSPF
-
Open Shortest Path First
In English
- OSR
-
Operations Support Room
In English
- OSR
-
Optical Surface Reflector
In English
- OSR
-
Operation Scholastic Outreach
In English
- OSRBD
-
Operational Software Reliability Benchmark Development
In English
- OSS
-
Office of Space Sciences
In English
- OSS
-
Optics Subsystem
In English
- OSS
-
Orbiting Space Station
The abbreviation OSS (Orbiting Space Station) includes the abbreviation SS (Space Station).
In English
- OSS
-
Open Source Software
The abbreviation OSS (Open Source Software) includes the abbreviation OS (Open Source).
In English
- OSSA
-
Office of Space Science and Applications
In English
- OSSA
-
Office of Space Sciences and Applications
In English
- OSSA
-
Oxfordshire School Sports Association
In English
- OSSAD
-
Office Support Systems Analysis and Design
The abbreviation OSSAD (Office Support Systems Analysis and Design) includes the abbreviation SS (Support System).
In English
- OSSE
-
Oriented Scintillation Spectrometer Experiment
In English
- OSSE
-
Observing System Simulation Experiment
In English
- OSSIEC
-
Osun State Independent Electoral Commission
In English
- OSSIU
-
Orbiter-Space Station Interface Unit
The abbreviation OSSIU (Orbiter-Space Station Interface Unit) includes the abbreviation SS (Space Station).
In English
- OSSRH
-
Orbiter Subsystem Requirements Handbook
In English
- OSST
-
Order of the Most Holy Trinity
In English
- OSSTMM
-
Open Source Security Testing Methodology Manual
The abbreviation OSSTMM (Open Source Security Testing Methodology Manual) includes the abbreviation OS (Open Source).
In English
- OSSTS
-
Optical Sight Sensor Test Station
The abbreviation OSSTS (Optical Sight Sensor Test Station) includes the abbreviation TS (Test Station).
In English
- OST
-
Orbiter Support Trolley
In English
- OST
-
Office of the Secretary of Transportation
In English
- OSTA
-
Office of Space and Terrestrial Applications
In English
- OSTC
-
Open Systems Testing Consortium
In English
- OSTDS
-
Office of Space Tracking and Data Systems
In English
- OSTF
-
Off-Site Test Facility
The abbreviation OSTF (Off-Site Test Facility) includes the abbreviation TF (Test Facility).
In English
- OSTO
-
Office of Space Transportation Operations
In English
- OSTP
-
Office of Science and Technology Policy
In English
- OSTP
-
Orbiting System Test Plan
The abbreviation OSTP (Orbiting System Test Plan) includes the abbreviation TP (Test Plan).
In English
- OSTS
-
Office of Space Transportation Systems
In English
- OSWA
-
Organizational Systems Wireless Auditor
In English
- OT
-
Occupational Therapy
In English
- OT&E
-
Operational Test and Evaluation
In English
- OTA
-
Operational Trajectory Analysis
In English
- OTA
-
Optical Telescope Assembly
In English
- OTB
-
Orbiting Tanker Base
In English
- OTC
-
Optical Test Chamber
In English
- OTC
-
Orbiter Test Conductor
The abbreviation OTC (Orbiter Test Conductor) includes the abbreviation TC (Test Conductor).
In English
- OTC
-
Over the Counter
In English
- OTC
-
OpenSSL Technical Committee
In English
- OTD
-
Operational Technical Documentation
In English
- OTD
-
Orbiter Test Director
In English