| AA | abdominal aorta; acetic acid; achievement age; active alcoholic; active assistive [range of motion];... |
|---|---|
| AAD | acute agitated delirium; alloxazine adenine dinucleotide; alpha-1-antitrypsin deficiency; American A... |
| Ade | adenine |
| APRT | adenine phosphoribosyl transferase |
| ara-A | adenine arabinoside |