Definitions For Opa

Noun

• a. A passageway or shaft in which air circulates, as in ventilating a mine.

Acronym

• Office of Public Affairs
• Ontario Power Authority (Ontario, Canada)
• Online Publishers Association
• Oil Pollution Act of 1990
• Oil Painters of America
• Offre Publique d'Achat
• Oferta Pública de Adquisición (de Acciones)
• Oferta Publica de Adquisicion (Spanish)
• Online Payment Agreement (taxes)
• Otherwise Protected Area
• Office of the Provincial Agriculturist (Philippines)
• Opacity-Associated
• Online Public Access
• Office of Price Administration
• Optical Pre Amplifier
• Online Pool Analyzer
• Offerta Pubblica Di Acquisto (Italian)
• Office of Population Affairs
• Opsonophagocytic Assay (microbiology)
• Office of Protection and Advocacy (aka P&A; persons with disabilities; Connecticut)
• Office of the Patient Advocate
• Official Points of Acceptance (investing)
• Office of Public Advocacy (various locations)
• Office of Professional Accountability (Seattle Police Department)
• Oropharyngeal Airway
• Ontario Pharmacists' Association
• Office of Pharmacy Affairs (HHS)
• Optical Parametric Amplifier
• Online Privacy Alliance
• Open Patent Alliance
• Oklahoma Press Association
• Open Partial Agreement (EU)
• Outward Processing Arrangement (Hong Kong and China)
• Ohio Pharmacists Association
• Ontario Psychological Association
• Optic Atrophy
• Overseas Publishers Association
• Office of Payroll Administration
• Opera Primaziale Pisana (Italian social accountability policy)
• Ontario Parks Association (Canada)
• Office of Policy Analysis
• Other Procurement, Army
• Official Public Account (Australia)
• Office of Public Assistance
• Office of Planning and Analysis (various locations)
• Ontario Prospectors Association
• Oregon Paralegal Association
• Ontario Paramedic Association
• Office of Program Appraisal
• Offshore Petroleum Act 2006 (Australia)
• Operations, Army
• Oriented Polyamide
• Office of Premarket Approval
• Okinawa Prefectural Archives (est. 1995; Japan)
• Ortho-Phthaldialdehyde
• Optical Publishing Association
• Observations Programme Area (JCOMM)
• Other Principal Arterial (transportation)
• Outstanding Paper Award
• Offenporigen Asphaltdeckschicht (German: Porous Asphalt Surface Layer)
• Organization of Professional Aviculturists
• Offense Per Acre (gaming)
• Organization for Public Administration
• Orthopedic Professional Association (Gilford, New Hampshire)
• Ohio Poetry Association (Ohio)
• Officer Personnel Act
• Open Platform Architecture
• Organization of Professional Associations of Sri Lanka
• Office of Professional Attachment
• Out of Place Artifact
• Orthopaedic Practice Assembly (Medical Group Management Association)
• Ontario Physiotherapists Association
• Overarching Partnering Agreement
• Ouptut and Performance Analysis
• OSI Presentation Address
• Other Procurement Authority
• Open Planar Array
• Operations Procurement Authority
• Operator Panel Assembly
• Overhead Precautionary Approach
• Organizational Performance Architecture
• Outage Probability Analysis