| Abbreviation | Definition |
|---|---|
| ASP | Amnesic Shellfish Poisoning |
| ASPIRE | Aspirin to Prevent Recurrent Venous Thromboembolism (Study) |
| ASPP | Aspiring Scientists and Physicians Program |
| ASPVD | Arteriosclerotic Peripheral Vascular Disease |
| ASS | Anterior superior spine |
| AST | Arch Support Technology |
| AST | ASpartate Transaminase |
| AST | Astigmatism |
| ASTIGM | Astigmatism |
| ASTOL | AS TOLerated |
| ASWM | Abnormal Segmental Wall Motion |
| AT | Acceleration Therapeutics |
| AT | Active Transport |
| AT | Anaerobic Threshold |
| AT | Anterior Tibial |
| AT | Ataxia Telangiectasia |
| AT | Atlas |
| ATA | Abort The Abortion |
| ATC | Around The Clock |
| ATEC | Autism Treatment Evaluation Checklist |