| Abbreviation | Definition |
|---|---|
| AIBSE | acute idiopathic blind spot enlargement |
| AICD | activation-induced cell death |
| AICD | automatic internal cardiac defibrillator |
| AICLA | Accidents ischemiques cerebraux lies a l'atherosclerose |
| AICUXX | Adult Intensive Care Unit |
| AID | acceptable intake daily |
| AID | accident/injury/damages |
| AID | acute ionisation detector |
| AID | American Instructors of the Deaf |
| AID | artificial insemination by donor See Artificial reproduction |
| AID | Assistance and Independence for the Disabled |
| AID | atherectomy imaging device |
| AID | auditory information display |
| AID | autoimmune deficiency |
| AID | automatic implantable defibrillator |
| AIDS | also |
| AIDSRRC | Acquired Immunodeficiency Syndrome Research Review Committee |
| AIED | autoimmune inner ear disease |
| AIL | acute infectious lymphocytosis |
| AIL | angiocentric immunoproliferative lesion |