| AA | abdominal aorta; acetic acid; achievement age; active alcoholic; active assistive [range of motion];... |
|---|---|
| ACAT | acetocoenzyme A acetyltransferase; automated computerized axial tomography |
| ACTA | American Cardiology Technologists Association; automatic computerized transverse axial [scanning] |
| ax | axillary; axis, axial |
| CAAT | computer-assisted axial tomography |