| AK | above knee; acetate kinase; adenosine kinase; adenylate kinase; artificial kidney |
|---|---|
| ALEC | artificial lung-expanding compound |
| ANN | artificial neural network |
| AP | accessory pathway; accounts payable; acid phosphatase; acinar parenchyma; action potential; active p... |
| APIVR | artificial pacemaker-induced ventricular rhythm |