| AID | acquired immunodeficiency disease; acute infectious disease; acute ionization detector; Agency for I... |
|---|---|
| AIMS | abnormal involuntary movement scale; aid for the impaired medical student; arthritis impact measurem... |
| APTD | Aid to Permanently and Totally Disabled |
| BAT | basic aid training; best available technology; blunt abdominal trauma; brown adipose tissue |
| BTE | behind the ear [hearing aid]; bovine thymus extract |