| AC-DC, ac/dc | alternating current or direct current |
|---|---|
| AFORMED | alternating failure of response, mechanical, [to] electrical depolarization |
| AMR | acoustic muscle reflex; activity metabolic rate; acute mitral stenosis; alopecia-mental retardation ... |
| APM | Academy of Parapsychology and Medicine; Academy of Physical Medicine; Academy of Psychosomatic Medic... |
| AXT | alternating exotropia |