PACS

PACS is an acronym with several meanings:

• Post-acute COVID-19 syndrome; see Long COVID
• Partial anterior circulation stroke syndrome, the symptoms of a type of an ischemic stroke
• Picture archiving and communication system, in medical imaging
• Premature atrial contractions (plural)

• Pacte civil de solidarité, a form of civil union in France
• Palo Alto Chinese School, Palo Alto, California, USA
• Political action committees, groups organized to elect or defeat political candidates (plural)
• Poorest Areas Civil Society Program (2001–2008), a defunct Indian social welfare program
• Primary Agricultural Credit Society, co-operative credit institutions in India
• Provisional Army of the Confederate States, of the Confederate States Army (American Civil War)

• Physics and Astronomy Classification Scheme, developed by the American Institute of Physics
• Photodetecting Array Camera and Spectrometer, an instrument of the Herschel Space Observatory

• Primary airport control station, a survey marker established in the vicinity of an airport
• Personal access control system. Gates, barriers and turnstiles that provide security for restricted areas on buildings and sites.
• Cape Sarichef Airport (ICAO airport code), on Unimak Island of the Aleutian Islands, Alaska
• Peace and conflict studies, an academic field that identifies and analyzes violent and nonviolent behaviors of social conflicts

• PAC (disambiguation)