| ACOS | American College of Osteopathic Surgeons; associate chief of staff |
|---|---|
| ACS | acrocallosal syndrome; acrocephalosyndactyly; acute chest syndrome; acute confusional state; Alcon C... |
| AMDS | Association of Military Dental Surgeons |
| AMS | ablepharon-microstomia syndrome; acute mountain sickness; adenosylmethionine synthetase; aggravated ... |
| ASGBI | Association of Surgeons of Great Britain and Ireland |