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Definition of Oa

Oa Definition from Government Dictionaries & Glossaries
European Defence Agency Acronyms
Operational Analysis
Operational Altitude
© 2005-2008 European Defence Agency. ( About )
DOD Joint Acronyms and Abbreviations
objective area; operating assembly; operational area; Operations Aerology shipboard METOC division
Source: U.S. Department of Defense, Joint Doctrine Division. ( About )
International Relations and Security Acronyms
Operational Assist
Oa Definition from Science & Technology Dictionaries & Glossaries
Operand Address
Telecom Terms
Optical Amplifier
Aviation - English -
Obstacle avoidance
Airline Codes
Olympic Airways (Greece)
Fiber Optics, Optical Networking Terms
Optical Amplifier
Oa Definition from Computer & Internet Dictionaries & Glossaries
9300+ Computer Acronyms
Office Automation
Oa Definition from Encyclopedia Dictionaries & Glossaries
English Wikipedia - The Free Encyclopedia
OA, O.A., Oa, or oa may refer to:

  • Old Alleynian, an old boy of Dulwich College
  • Oxford Academy (California), #2 ranked public high school in the United States

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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 Jordan's "energy duplicate" so they could hear of his origin.

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Ovada ( and Guà in Ligurian, Ovà in Piedmontese) is a comune (municipality) of 11,613 inhabitants in the Province of Alessandria in the Italian region Piedmont, located in the "Alto Monferrato" area about southeast of Turin and about south of Alessandria.

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Oa Definition from Sports Dictionaries & Glossaries
over aged
Oa Definition from Medicine Dictionaries & Glossaries
The Glossary of the American Council on Science and Health
A chronic, noninflammatory disease characterized by the progressive deterioration of cartilage at joints and of the underlying bone.