Legal Abbreviations and Acronyms
- NZLNew Zealand
- NZOINew Zealand Oceanographic Institute
- NZPNational Zoological Park
- OAOperations Agreement
- OAMOperation and Maintenance
- OARMOffice of Administration and Resources Management (USEPA)
- OASOrganization of American States
- OASISObservation At Several Interacting Scales
- OATobligations assumilables de Trésor
- OAXTCOcean/Atmosphere Exchange of Trace Compounds
- OBObstetric
- OBADObadiah
- OBCOn Board Computer
- OBDHOn-Board Data Handling
- OBEDObedience
- OBLOblique
- OBOOrder Book Official
- OBSObstetric
- OBSObservation
- OBSObsolete
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