| Abbreviation | Definition |
|---|---|
| AMP | adenosine monophosphate |
| AMP | Ampule |
| AMP | Asthma Management Program |
| AMPD | adenosine monophosphate deaminase |
| AMPK | activated protein kinase |
| AMPK | adenosine monophosphate-activated protein kinase |
| AMPPE | Acute Multifocal Placoid Pigment Epitheliopathy |
| AMR | Active Metabolic Rate |
| AMS | Active Mountain Sickness |
| AMS | Acute Mountain Sickness |
| AMS | Advanced Modeling Syndrome |
| AMS | Amylase |
| AMS | Anatomical Molding System |
| AMT | Amount |
| ANA | Almost Negative Alignment |
| ANA | Anesthesia |
| ANA | Anorexia |
| ANAL | Analgesic |
| ANCA | antineutrophil cytoplasmic antibodies |
| ANCA | Anti-Neutrophil Cytoplasmic Antibody |