Browse Abbreviations Starting with O

List of acronyms, initialisms, and meanings beginning with the letter O.

OPMI OPMN OPNH OPNK OPOK OPOR OPPC OPPG OPPI OPQS OPQT OPRN OPRS OPRT OPTT OPWN OPZB ORMM OSDZ OSPR OPSD OP-TDLAS OCXO OPSU OUJ OFPA OWCP OSDFS OTFP OB-GYN ODE (CDER) OFACS OHRMS ONCHIT OPHEP OSD-HD
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