| Abbreviation | Definition |
|---|---|
| AIT | auditory integrated training |
| AIT | autoimmune thrombocytopaenia |
| AIT | autoimmune thyroiditis |
| AITIA | Aspirin In Transient Ischemic Attacks |
| AITRC | Allergy, Immunology, & Transplantation Research Committee |
| AJ-Q | analysis job queue |
| AK | above knee |
| AKA | American Kinesiotherapy Association |
| AKA/aka | above-the-knee amputation |
| AL | adductor longus |
| AL | alcohol |
| AL | alcoholism |
| AL | alprazolam |
| AL | angiotropic lymphoma |
| AL | anterior leaflet |
| AL | anterior lobe |
| AL | anterolateral |
| AL | arterial line |
| AL | artificial limb |
| AL | artificial lung |