PSA

Look up PSA in Wiktionary, the free dictionary.

PSA, PsA, Psa, or psa may refer to:

Biology and medicine

• Posterior spinal artery
• Primary systemic amyloidosis, a disease caused by the accumulation of abnormal proteins
• Prostate-specific antigen, an enzyme used as a blood tracer for prostate cancer
• Psoriatic arthritis, an inflammatory disease
• Pseudomonas aeruginosa, a species of bacterium
• Pseudomonas syringae pv. actinidiae, a pathovar of a bacterium that attacks kiwifruit

Chemistry

• Polar surface area, the surface sum over all polar atoms of a molecule
• Pressure swing adsorption, a technology for separating, or purifying, gases

Computing

• Professional services automation, software for automating project and billing management for professional service firms
• PSA Certified, Platform Security Architecture, a security certification for the Internet of Things
• Plesk Server Administrator, a commercial web hosting automation program
• Persistent staging area, a staging area in data vault modeling

Contracts, legislation and government services

• Passenger Vessel Services Act of 1886 or Passenger Services Act, US
• Payment Services Act, Singapore
• Primary statistical area, a collective term for metropolitan, micropolitan, and combined statistical areas
• Problem-solution approach, an approach for assessing inventive step at the European Patent Office
• Production sharing agreement, a contract between a government and a resource extraction company
• Public Safety Act, a law in Jammu and Kashmir
• Public service agreement, UK government department targets for 3-year period
• Public service announcement, a message in the public interest disseminated by the media without charge
• Purchase and sale agreement, an agreement between a buyer and a seller

Organizations and authorities

Sports

• Pro Snowboarders Association
• Professional Skaters Association
• Professional Sports Authenticator, an authenticator of sports, trading cards and similarly hand-signed artifacts
• Professional Squash Association

Transport

• PSA Airlines, a subsidiary of American Airlines Group
• Pisa International Airport, Pisa, Italy, IATA code PSA
• Pacific Southwest Airlines, US, 1949 to 1988, ICAO code PSA
• Penn Station Access, a planned New York City rail upgrade
• PSA Group (Peugeot Société Anonyme), French multinational automobile manufacturer now part of Stellantis

Other uses

• "PSA" (song) by SZA, from the album Lana (2023)
• PSA 5.7 Rock, a pistol
• Penal substitutionary atonement, a theory of atonement in Christianity
• Autonomous Socialist Party (disambiguation)
• Pisa language or Asue Awyu, ISO 639-3 code psa
• Piscis Austrinus (Southern Fish) constellation, IAU abbreviation PsA
• Public Storage stock ticker
• Power Station of Art, a contemporary art museum in Shanghai, China
• Pressure-sensitive adhesive
• "PSA", title of an earlier version of the R.E.M. song "Bad Day"
• Palmetto State Armory, an American firearms company based in Columbia, South Carolina.

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