Science Abbreviations and Acronyms
- OOPCOcean Observations Tanel for Climate
- OOPCOcean Observing Nanel for Climate
- OOPECOffice for Official Publications of The Eurepean Communities
- OOSOptical-Oscillator Strength
- OOSOrbit-To-Orbit Stage
- OOSAOffice of Outer Space Affairs
- OOSCIOut-Of-School Children Initiative
- OOSDPOcean Observing System Development Panel
- OOSDPOcean Observation System Development Panel
- OOSDPOcean Observing System Development Programme
- OOSIOsterreichisches Ost- Und Sudosteuropa-Institutetut
- OOTUOrigin of The Universe
- OOUOlabisi Onabanjo University Ago-Iwoye
- OOWOffice of Operations and Weapons
- OOXMLOofice Open Extended Markup Language
- OPOutpatient Department
- OPOffice of The President
- OPOperational Phase
- OPOptical Profilosetry
- OPObservatoire De Paris
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