| Abbreviation | Definition |
|---|---|
| ABSCS | Autologous Blood Stem Cell Support |
| ABSD | Adult Basic Skills Development |
| ABV | Afferent Branchial Vein |
| AC | Abdominal Circumference |
| AC | Abstinence Committed |
| AC | Acromio Clavicular |
| AC | AcromioClavicular |
| AC | Acute |
| AC | Ante Cibum - before meals |
| AC | Assist-Control (a form of mechanical ventilation) |
| AC | Before Meals |
| ACC | Accommodation |
| ACC | Aplasia Cutis Congenita |
| ACCESS | A Case Control Etiology Sarcoidosis Study |
| ACCOM | Accommodation |
| ACCP | American College of Correctional Physicians |
| ACD | Acid-Citrate-Dextrose |
| ACD | Anterior Chest Diameter |
| ACDF | Access Control Decision Function |
| ACDF | Anterior Cervical Decompression and Fusion |