OA (redirected from Open architecture)

Acronym	Definition
OA	Odessa American (Odessa, TX, USA)
OA	Overall
OA	Order of the Arrow (National Honor Society of the Boy Scouts of America)
OA	Open Access
OA	On Air (TV, radio)
OA	Osteoarthritis
OA	Office Automation
OA	Office of Administration
OA	Onder Andere (Dutch: Among Others)
OA	Overeaters Anonymous
OA	Olympic Airways
OA	Original Article
OA	Overactive
OA	Oral Administration (medicine and educational testing)
OA	Outside Air
OA	Open Agility (AKC title)
OA	Open Architecture
OA	Occupational Asthma
OA	Operating Agency
OA	On or About
OA	ocular albinism
OA	Operational Area
OA	Office Action
OA	Office of AIDS (California)
OA	Office of the Administrator
OA	Optical Amplifier
OA	Operational Assessment
OA	Outside Assistance
OA	Occiput Anterior (fetal position)
OA	Organization and Administration
OA	Out of Action
OA	Orthogonal Array
OA	Offensive Action
OA	Offered Again
OA	Octopamine (biogenic amine)
OA	Optic Axis
OA	Organizational Assessment
OA	Order of Australia
OA	Operations Analyst
OA	Operational Availability
OA	Obstacle Avoidance
OA	Osmotic Adjustment
OA	Operational Architecture
OA	Object Adapter
OA	Oriental Adventures (gaming)
OA	Objective Area
OA	Orthogonal Acceleration (mass spectrometry)
OA	Off-line Analysis
OA	Opportunity Analysis
OA	Order Administration
OA	Obligational Authority
OA	Oxford Academy (Cypress, CA)
OA	Online Academy
OA	Operational Assistance
OA	Office of Audits
OA	Operating Agent
OA	Old Assyrian
OA	Ordinary Annuity
OA	Orientation Advisor (school)
OA	Over Aged
OA	Ordering Activity
OA	Opera America
OA	Ordered Aggregate (Differentiated Services Protocol)
OA	Online Alumni
OA	Operations Agreement (NASA)
OA	Operator Assistant
OA	Old Aspen
OA	Orienteering Australia (Australian Capital Territory)
OA	Oversight & Performance Assurance
OA	Optoacoustics
OA	Origin Agent (transportation industry)
OA	Office of Applications
OA	Old Athen
OA	Optical Augmentation
OA	Orange Anime (Florida japanese culture and media club)
OA	Orchestra Atlanta (Atlanta, GA)
OA	Operating Authorization
OA	Overhead Approach
OA	Operations Astronomer
OA	Orbit Area
OA	Order of Avalon (gaming)
OA	Operability Analysis
OA	Orbital Analyst
OA	Output Acknowledge
OA	Ovarian Atresia
OA	Occlusal Amalgam (dentistry)
OA	Orbiter Ancillary
OA	Overton Arm
OA	Operations Aerographer
OA	Orbital/Orbiter Assembly
OA	Operational Assist/Assembly
OA	Organizing Authority (various organizations)