PACS
# 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
