| ANESR | apparent norepinephrine secretion rate |
|---|---|
| Ang GR | angiotensin generation rate |
| ANTR | apparent net transfer rate |
| AOO | anodal opening odor; atrial asynchronous (competitive, fixed-rate) [pacemaker] |
| AR | absolute risk; accounts receivable; achievement ratio; actinic reticuloid [syndrome]; active resista... |