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

Opperate Annihilate

Miscellaneous » Unclassified

   
OA

Opposites Attract

Miscellaneous » Unclassified

   
OA

Optical Amplifier

Miscellaneous » Unclassified

   
OA

Optical Axis

Medical » Physiology

   
OA

option appraisal

Medical » British Medicine

   
OA

Orange Arsenal

Miscellaneous » Unclassified

   
OA

Orbital Assembly

Governmental » NASA

   
OA

Order of Alequi

Miscellaneous » Science Fiction

   
OA

Order of the Arrow

Community » Scouting

   
OA

Ordered Application

Miscellaneous » Unclassified

   
OA

Org.Apache

Computing » Software

   
OA

Organic Acid

Academic & Science » Electronics

   
OA

organic aerosol

Academic & Science » Chemistry

   
OA

organic anion

Medical » British Medicine

   
OA

Oriental Adventures

Business » Firms

   
OA

Original Arranged

Miscellaneous » Unclassified

   
OA

Original Artist

Miscellaneous » Unclassified

   
OA

orotic acid

Medical » British Medicine

   
OA

Orthogonal Array

Academic & Science » Mathematics

   
OA

Osteo-arthritis

Medical

   
OA

OsteoArthritis

Medical » Physiology

   
OA

OsteoArthritis

Governmental » FDA

   
OA

osteoarthritis

Medical

   
OA

Osteoarthritis, Occiput Posterior

Medical » Physiology

   
OA

Other Adjustment

Miscellaneous » Unclassified

   

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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