Found 11,847 abbreviations starting with O:

O-Day	Off-Load Day Governmental » Military
O-EA	O-flex Energy Absorbing Business » Products
O-M	opsoclonus-myoclonus Medical » Physiology
O-NAV	Onboard Navigation Governmental » NASA
o-t-c	over-the-counter Medical » Prescription
O.A.	Order of Australia Regional » Australian
O.A.M.	Medal of the Order of Australia Regional » Australian
O.C.G.A.	Official Code of Georgia Annotated Community » Educational
O.D.	Doctor of Optometry Academic & Science » Academic Degrees
O.o	Confusion Internet » Emoticons
O.O	Surprised. Confused. Shocked. Internet » Emoticons
O.O.D.	Operations Officer of the Day Governmental » Military
O.P.	osmotic pressure Medical » Physiology
o.p.d.	once per day Medical » Prescription
O.R.N.	Operating Room Nurse Medical » Hospitals
O.S.	left eye (ocularis/oculus sinister (Lat.) Medical
o.s.	oculus sinister - left eye Medical » Prescription
O.S.	Old Style, as in Old Style Date Community » Genealogy
o.u.	oculus uterque - both eyes Medical » Prescription
o/a	old age Medical » Physiology
o/a	on account Business » General
o/a	on admission Medical » Hospitals
O/A	Open Account Business » International Business
O/B	Onboard Governmental » NASA
O/B	Operational Base Governmental » NASA

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