OA
OA is used in medical contexts to refer to an open appointment slot or the ophthalmic artery, and more generally as an abbreviation for “overall” in reports and assessments.
Medical
OsteoArthritis
Optical Axis
Ocular Albinism
Osteo-arthritis
Old Age
Obstructive Apnoea
Occipital Artery
Occiput Anterior
odontoameloblastoma
Oesophageal Atresia
Oleic Acid
oligoastrocytoma
Open Appointment
Ophthalmic Artery
Option Appraisal
Organic Anion
Orotic Acid
Ovarian Artery
Oxalic Acid
Miscellaneous
Order of Alequi
Oil Air
Ogie Alcasid
Office Automation
Olympic Arms
Overs Average
Omar Ahmed
Obadiah Abbe
Opperate Annihilate
Opposites Attract
Original Arranged
Overeaters And
Outdoor Adventure
Optical Amplifier
Other Approval
Other Auctions
Original Artist
Oben Angef
Other Adjustment
Orange Arsenal
Ordered Application
Open Agility
Online Applicant
Official Answer
Odessa American
on Abbreviations
Okay Ako
Community
Operation Administrations
Office of Audit
Overeaters Anonymous
Over Actor
Over Acting
Order of the Arrow
Governmental
Operational Assessment
Operations Agreement
Over Aged
Onepass Aadvantage
Overall
Office of Applications (now OSTA)
Operational Aft (DSC or MOM)
Operational instrumentation MDM (Manipulator Deployment Mech
Orbital Assembly
Output Axis
Objective Area
Operating Assembly
Operational Area
Operations Aerology Shipboard METOC Division
Academic & Science
Organic Acid
Office of Administration
Overzealous Academy
Outreach and Admissions
Orthogonal Array
Organic Aerosol
Open Architecture
Computing
Ole Automation
Org.Apache
Open Access
Open Apple
Open Appserver
Object Address
Object Adapter
On-board Administrator