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HADES - Main page → Ackr → In English
In English
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| OHSU | Oregon Health and Science University (www.ohsu.edu) | In English | → Higher education, universities → Mathematics and natural sciences → Medicine |
| OHT | Organization of History Teachers | In English | → Organizations and associations → Education → History |
| OI | Oriental Institute | In English | → Area studies |
| OI | Orbiter Insertion | In English | → Spaceflight engineering, astronautics |
| OI | Orbiter Instrumentation | In English | → Spaceflight engineering, astronautics |
| OIA | Orbiter Interface Adapter | In English | → Human-computer interaction → Spaceflight engineering, astronautics |
| OIA | Office of International Affairs | In English | → International relations |
| OIA | Office of Internal Affairs | In English | |
| OIB | Operating Improvement Board | In English | |
| OIC | Orbital Integrated Checkout | In English | → Spaceflight engineering, astronautics |
| OIC | Organization of the Islamic Conference | In English | → Organizations and associations → Islam → International relations |
| OIC | Oikos International Church | In English | → Religion, theology |
| OIC | Organisation of the Islamic Conference | In English | → Organizations and associations → Islam |
| OIE | Orbiter Integration Engineering | In English | → Spaceflight engineering, astronautics |
| OIETAI | Organization for Investment, Economic and Technical Assistance of Iran | In English | → Organizations and associations → Economics → 33972 |
| OIF | Osteogenesis Imperfecta Foundation | In English | → Foundations → Pathology |
| OII | Operations Integration Instruction | In English | |
| OIL | Ontology Inference Layer | In English | → Programming languages → Libraries |
| OIO | Operations Integration Officer | In English | |
| OIOC | Oriental and India Office Collections | In English | → Libraries → Area studies |
| OIR | Open Item Report | In English | |
| OIR | Operations Integration Review | In English | |
| OIS | Orbit Inserting System | In English | → Spaceflight engineering, astronautics |
| OIS | Orbiter Instrumentation Systems | In English | → Spaceflight engineering, astronautics |
| OIS | Orbit Insertion Subsystem | In English | → Spaceflight engineering, astronautics |
| OIS | Optical Imager Study | In English | |
| OIS | Orbit Injection Subsystem | In English | → Spaceflight engineering, astronautics |
| OIS | Operational Intercommunication System | In English | → Telecommunications |
| OISAR | Optical Inverse Synthetic-Aperture Radar | In English | |
| OISR | Open Item Status Report | In English | |
| OISS | Open Item Status Subsystem | In English | |
| OISTP | Oxygen-Iodine SUpersonic Technology Program | In English | → Aeronautics, aircraft |
| OIT | Orbiter Integrated Test | In English | → Spaceflight engineering, astronautics |
| OIT | Orbiter Integration Test | In English | → Spaceflight engineering, astronautics |
| OIT | Orbiter Interface Test | In English | → Spaceflight engineering, astronautics |
| OIV | Oxidizer Isolation Valve | In English | |
| OIVS | Orbiter Interface Verification Set | In English | → Spaceflight engineering, astronautics |
| OIW | OSI (Open Systems Interconnection) Implementors' Workshop | In English | |
| OJEU | Official Journal of the European Union | In English | → Serial publications, periodicals → International relations |
| OJSC | Open Joint Stock Company | In English | → Economics |
| OJT | On-the-Job Training | In English | → Labour, labour economics → Education |
| OKBC | Open Knowledge Base Connectivity | In English | → Computer science |
| OklRe | University of Oklahoma Observatory Reprints | In English | → Serial publications, periodicals → Astronomy |
| OL | Ontology Inference Layer | In English | |
| OLAP | On Line Analytical Processing | In English | → Knowledge management → Data |
| OLDB | On-Line Data Bank | In English | → Data |
| OLE | Object Linking and Embedding | In English | → Software |
| OLear | Open Learning | In English | → Serial publications, periodicals → Education |
| OLEB | Origins of Life and Evolution of the Biosphere | In English | → Serial publications, periodicals → Biological sciences |
| OLED | Organic Light Emitting Device | In English | |
| OLED | Organic Light-Emitting Diode | In English | |
| OLERD | Orbiter Landing Emergency Rescue Data | In English | → Spaceflight engineering, astronautics |
| OLF | Orbiter Lifting Frame | In English | → Spaceflight engineering, astronautics |
| OLG | (Sisters of) Our Lady of the Garden | In English | → Roman catholic church |
| OLIF | ORbiter Landing Instrumentation Facility | In English | → Spaceflight engineering, astronautics |
| OLMAM | Optimized Levenberg Marquardt with Adaptive Momentum | In English | → Mathematics |
| OLOW | Orbiter Lift-Off Weight | In English | → Spaceflight engineering, astronautics |
| OLP | (Sisters of) Our Lady of Providence | In English | → Roman catholic church |
| OLPC | One Laptop Per Child | In English | → Hardware |
| OLSP | Orbiter Logistics Support Plan | In English | → Spaceflight engineering, astronautics |
| OLT | Optical Line Terminal | In English | → Telecommunications |
| OLTP | On Line Transaction Processing | In English | → Data |
| OMA | Object Management Architecture | In English | → Management |
| OMA | Operations Maintenance Area | In English | → Maintenance and logistics |
| OMA | Orbiter Maintenance Area | In English | → Maintenance and logistics → Spaceflight engineering, astronautics |
| OMA | Operations Management Application | In English | → Management |
| OMAS | Operations Management Application Software | In English | → Software → Management |
| OMB | Office of Management and Budget | In English | → Management |
| OMBUU | Orbiter Midbody Umbilical Unit | In English | → Spaceflight engineering, astronautics |
| OMCF | Orbiter Maintenance and Checkout Facility | In English | → Maintenance and logistics → Spaceflight engineering, astronautics |
| OMCF | Operations and Maintenance Control File | In English | → Maintenance and logistics |
| OMCS | Operations and Maintenance Communications System | In English | → Maintenance and logistics → Telecommunications |
| OMD | Operations and Maintenance Documentation | In English | → Maintenance and logistics |
| OMDP | Orbiter Maintenance Down Period | In English | → Maintenance and logistics → Spaceflight engineering, astronautics |
| OMDR | Operations and Maintenance Data Record | In English | → Maintenance and logistics |
| OME | Orbital Maneuvering Engine | In English | → Spaceflight engineering, astronautics |
| OME | Orbiter Main Engine | In English | → Spaceflight engineering, astronautics |
| OMEC | Organic Materials for Electronics Consortium | In English | → Chemistry → Electronics |
| OMET | Orbiter Mission Elapsed Time | In English | → Spaceflight engineering, astronautics |
| OMEWG | Orbiter Maintenance Engineering Working Group | In English | → Maintenance and logistics → Spaceflight engineering, astronautics |
| OMF | Open Source Metadata Framework | In English | |
| OMG | Object Management Group | In English | → Organizations and associations → Software |
| OMGA | Operations Management Ground Application | In English | → Management |
| OMI | Operations and Maintenance Instruction | In English | → Maintenance and logistics |
| OMIJC | Operations and Maintenance Instruction Job Card | In English | → Maintenance and logistics |
| OMIM | Online Mendelian Inheritance in Man | In English | → Genetics → Biochemistry, biophysics |
| OMISS | Operation and Maintenance Instruction Summary Sheet | In English | → Maintenance and logistics |
| OMK | Orbiter Mission Kit | In English | → Spaceflight engineering, astronautics |
| OML | Outer Mold Line | In English | → Metallurgy |
| OML | Orbiter Mold Line | In English | → Spaceflight engineering, astronautics |
| OMM | Outer Mitochondrial Membrane | In English | |
| OMMH | Orbiter Maintenance Man-Hour | In English | → Maintenance and logistics → Spaceflight engineering, astronautics |
| OMMI | Oblate Missionaries of Mary Immaculate = OMMI | Oblates Missionnaires de Marie Immaculée | In French = OMMI | Oblatas Misioneras de Maria Inmaculada | In Spanish = OMMI | Oblate Missionarie di Maria Immacolata | In Italian |
In English | → Roman catholic church |
| OMP | Operations and Maintenance Plan | In English | → Maintenance and logistics |
| OMP | Operating Maintenance Plan | In English | → Maintenance and logistics |
| OMPR | Operational Maintainability Problem Reporting | In English | → Maintenance and logistics |
| OMPT | Observed Mass Point Trajectory | In English | |
| OMR | Operations Management Room | In English | → Management |
| OMR | Orbiter Management Review | In English | → Spaceflight engineering, astronautics |
| OMR | Operations and Maintenance Requirement | In English | → Maintenance and logistics |
| OMR | Optical Mark Recognition | In English | → Writing systems → Computer-based techniques |
| OMRB | Operating Material Review Board | In English | |
| OMRC | Operational Maintenance Requirements Catalog | In English | → Maintenance and logistics |
| OMRF | Orbiter Maintenance and Refurbishment Facility | In English | → Maintenance and logistics → Spaceflight engineering, astronautics |
| OMRF | Orbiter Modification and Refurbishment Facility | In English | → Maintenance and logistics → Spaceflight engineering, astronautics |
| OMRP | Operations and Maintenance Requirements Plan | In English | → Maintenance and logistics |
| OMRS | Operations and Maintenance Requirements and Specifications | In English | → Maintenance and logistics |
| OMRS | Operations and Maintenance Requirements System | In English | → Maintenance and logistics |
| OMRSCB | Operations and Maintenance Requirements and Control Board | In English | → Maintenance and logistics |
| OMRSD | Operations and Maintenance Requirements and Specifications Document | In English | → Maintenance and logistics |
| OMS | Operations Management System | In English | → Management |
| OMS | Orbital Maneuvering System | In English | → Spaceflight engineering, astronautics |
| OMSP | Operational Maintenance Support Plan | In English | → Management |
| OMSP | Open Market Selling Price | In English | → Prices |
| OMT | Osteopathic Manipulative Treatment | In English | → Medicine |
| OMT | Object-Modeling Technique | In English | → Software |
| OMU | Optical Measuring Unit | In English | → Optics |
| OMV | Orbital Maneuvering Vehicle | In English | → Spaceflight engineering, astronautics |
| OMV | Oxygen Manual Valve | In English | |
| OMVS | Optically Variable Magnetic Stripe | In English | → Optics |
| ONBT | Orbiter Neutral Buoyancy Trainer | In English | → Spaceflight engineering, astronautics |
| OND | Operator Need Date | In English | |
| ONE | Organisation Naturiste Européenne (www.onenaturism.com) | In English | → Organizations and associations |
| ONGC | Office des Normes Générales du Canada | In English | → Standardization |
| ONGC | Oil and Natural Gas Corporation (www.ongcindia.com) | In English | → Earth sciences → Mining |
| ONR | Office of Naval Research | In English | → Military engineering |
| ONRAS | Occasional Notes of the Royal Astronomical Society | In English | → Serial publications, periodicals → Astronomy |
| ONT | Optical Network Terminal | In English | → Networks, communication → Telecommunications |
| ONT | Ontario International Airport | In English | → Transport and postal services |
| OntoUCP | Ontology-based Unified Communication Protocol | In English | → Programming languages |
| OntoUCP | Ontology based Unified Communication Protocol | In English | → Software → Networks, communication |
| OOD | Orbiter On Dock | In English | → Spaceflight engineering, astronautics |
| OOD | Object-Oriented Design | In English | |
| OODP | Out-Of-Detent Pitch | In English | |
| OODR | Out-Of-Detent Roll | In English | |
| OOH | Orbital Operations Handbook | In English | → Spaceflight engineering, astronautics |
| OOMM | Organizational Operations and Maintenance Manual | In English | → Maintenance and logistics |
| OOP | Over Optimization Penalty | In English | |
| OOR | On-Orbit Review | In English | → Spaceflight engineering, astronautics |
| OOS | Orbit-to-Orbit Stage | In English | → Spaceflight engineering, astronautics |
| OOS | Orbit-to-Orbit Shuttle | In English | → Spaceflight engineering, astronautics |
| OOS | On-Orbit Station | In English | → Spaceflight engineering, astronautics |
| OOSD | On-Orbit Support Document | In English | → Spaceflight engineering, astronautics |
| OOSD | Orbital Operations Support Document | In English | → Spaceflight engineering, astronautics |
| OOSDP | On-Orbit Station Distribution Panel | In English | → Spaceflight engineering, astronautics |
| OOSS | On-Orbit Support System | In English | → Spaceflight engineering, astronautics |
| OP | Operating Procedure | In English | → Management |
| OP&R | Operations Planning and Requirements | In English | → Management |
| OPA | Operations Planning Analysis | In English | → Management |
| OPA | Online Publishers Association | In English | → Organizations and associations → Graphic industries, printing, publishing |
| OPA | Ontario Psychological Association | In English | → Associations → Psychology |
| OPAC | Online Public Access Catalog | In English | → Libraries |
| OPB | Oxidizer Preburner | In English | → Vehicle engineering |
| OPBS | Orbiter Payload Bay Simulator | In English | → Spaceflight engineering, astronautics |
| OPC | Open Process Control | In English | → Management |
| OPCs | Oligodendrocyte Progenitor Cells | In English | → 5763 |
| OPD | Optical Path Difference | In English | → Optics |
| OPDAR | Optical Detection and Ranging | In English | → Optics |
| OPDS | Organ on Politics, Defence and Security | In English | → International relations → Military affairs |
| OPE | Operational Processing Equipment | In English | |
| OPEC | Organization of the Petroleum Exporting Countries = OPEP | Organisation des Pays Exportateurs de Pétrole | In French = OPEC | Organization of Petroleum Exporting Countries | In English = 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 = ОПЕК | Организација на земји извознички на нафта и нафтени деривати | In Macedonian |
In English | → Organizations and associations → Mining → 665 |
| OPEC | Organization of Petroleum Exporting Countries = OPEP, OPEL, ОПЕК (look above) |
In English | → Organizations and associations → Mining → 665 |
| OPEIU | Office and Professional Employees International Union | In English | → Organizations and associations → Labour, labour economics |
| OPF | Orbiter Processing Facility | In English | → Spaceflight engineering, astronautics |
| OPGL | Osteoprotegerin Ligand | In English | → Biochemistry, biophysics |
| OPI | Operations Procedure Instruction | In English | → Management |
| OPI | Orbiter Payload Interrogator | In English | → Spaceflight engineering, astronautics |
| OPIDF | Operational Planning Identification File | In English | → Management |
| OPIS | Orbiter Prime Item Specification | In English | → Spaceflight engineering, astronautics |
| OPK | Ovulation Predictor Kit | In English | → Gynaecology → Reproductive biology |
| OPL | Open Problem List | In English | |
| OPL | Orbiter Project Parts List | In English | → Spaceflight engineering, astronautics |
| OPLF | Orbiter Processing and Landing Facility | In English | → Spaceflight engineering, astronautics |
| OPM | Operations Procedure Manual | In English | → Management |
| OPM | Outer Planet Mission | In English | → Astronomy → Spaceflight engineering, astronautics |
| OPML | Outline Processor Markup Language | In English | → Programming languages |
| OPN | Osteopontin | In English | → Biochemistry, biophysics |
| OPO | Orbiter Project Office | In English | → Spaceflight engineering, astronautics |
| OPOV | Oxidizer Preburner Oxidizer Valve | In English | → Vehicle engineering |
| OPPAR | Orbiter Project Parts Authorization Request | In English | → Spaceflight engineering, astronautics |
| OPPF | Oxford Protein Production Facility | In English | → Biochemistry, biophysics → Biotechnology |
| OPPS | Operations Planning and Project Support | In English | → Management |
| OPR | Oxygen Pressure Regulator | In English | |
| OPR | Office of Primary Responsibility | In English | → Management |
| OPR | Operations Planning Review | In English | → Management |
| OPR | Orbiter Payload Recorder | In English | → Spaceflight engineering, astronautics |
| OPRV | Oxygen Pressure Relief Valve | In English | |
| OPS | Oxygen Purge System | In English | |
| OPS | Orbiter Project Schedule | In English | → Spaceflight engineering, astronautics |
| OPS | Operational Sequence | In English | → Management |
| OpSCN | Optical Sciences Center Newsletter | In English | → Serial publications, periodicals → Optics |
| OPSDB | Operations Data Base | In English | → Data |
| OPSDBA | Operations Data Base Administrator | In English | → Data → Management |
| OPSS | Orbital Propellant Storage Subsystem | In English | → Spaceflight engineering, astronautics |
| OPT | Operational Pressure Transducer | In English | |
| OPTB | Operational Program Time Base | In English | |
| OptCo | Optics Communications | In English | → Serial publications, periodicals → Optics → Telecommunications |
| OptEn | Optical Engineering | In English | → Serial publications, periodicals → Optics |
| OptFT | Optical Fiber Technology | In English | → Serial publications, periodicals → Optics → Telecommunications |
| OptL | Optics Letters | In English | → Serial publications, periodicals → Optics |
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