What does OA stand for?

What does OA mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: OA.

We've found a total of 92 definitions for OA:

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OA

On-board Administrator

Computing » General

   
OA

Ole Automation

Computing » General

   
OA

Open Apple

Computing » General

   
OA

Orthogonal Array

Academic & Science » Mathematics

   
OA

Over Actor

Community » Media

   
OA

Osteo-arthritis

Medical

   
OA

old age

Medical

   
OA

osteoarthritis

Medical

   
OA

Objective Area

Governmental » Military

   
OA

Operating Assembly

Governmental » Military

   
OA

Operational Area

Governmental » Military

   
OA

Operations Aerology Shipboard METOC Division

Governmental » Military

   
OA

Over Aged

Governmental » Military

   
OA

Operational Assessment (or Architecture)

Governmental » Military

   
OA

Overall

Governmental » Military

   
OA

Office of Applications (now OSTA)

Governmental » NASA

   
OA

Operational Aft (DSC or MOM)

Governmental » NASA

   
OA

Operational Instrumentation MDM-Aft

Governmental » NASA

   
OA

Orbital Assembly

Governmental » NASA

   
OA

Output Axis

Governmental » NASA

   
OA

Overall

Governmental » NASA

   
OA

Operations Agreement

Governmental » NASA

   
OA

Open Access

Computing » Networking

   
OA

Overeaters Anonymous

Community » Non-Profit Organizations

   
OA

Office of Administration

Academic & Science » Ocean Science

   

What does OA mean?

Oa
Oa is a fictional planet that lies at the center of the DC Comics universe. Since its inception, Oa has been the planetary citadel of the Guardians of the Universe and the headquarters of the Green Lantern Corps. It first appeared in Green Lantern vol 2 #1, when the Guardians summoned Hal's "energy duplicate" so they could hear of his origin.

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