title: PACS
text: # PACS
  
  PACS is an acronym with several meanings:
  
  ## Medicine
  
  * Post-Acute COVID-19 Syndrome
  * Partial Anterior Circulation Stroke Syndrome, the symptoms of a type of an ischemic stroke
  * Picture Archiving and Communication System, a system used in medical imaging to store, retrieve, distribute, analyze, and digitally process medical images.
  
  ## Organizations and establishments
  
  * Pacte civil de solidarité, a form of civil union in France
  * Palo Alto Chinese School, Palo Alto, California, USA
  * 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, the "volunteer" or wartime-expansion component of the Confederate States Army
  
  ## Child psychology
  
  * Phonological Assessment of Child's Speech, a type of analysis battery used in developmental psychology to ascertain if a child has a reading disorder.
  * Phonological Awareness Composite Scores, a marking criterion as part of the CTOPP assessment battery for assessing a child's awareness of the oral structure of language.
  
  ## Physics and astronomy
  
  * Physics and Astronomy Classification Scheme, a scheme developed by the American Institute of Physics
  * Photodetecting Array Camera and Spectrometer, an instrument of the Herschel Space Observatory
  
  ## PACs
  
  PACs is the plural of PAC; for example:
  
  * Political action committees, groups organized to elect or defeat political candidates
  * Premature atrial contractions
  
  ## Other
  
  * 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
  