| Abbreviation | Definition |
|---|---|
| AM | ambulatory monitoring |
| AM | amikacin |
| AM | amlodipine |
| AM | amniotic membrane |
| AM | amoxicillin |
| AM | ampicillin |
| AM | amplitude |
| AM | amygdala |
| AM | anovulatory menstruation |
| AM | ante meridiem before noon |
| AM | anteromedial |
| AM | antimalarial |
| AM | apomorphine |
| AM | apparent movement |
| AM | aseptic meningitis |
| AM | Assembly Member (Wales) |
| AM | atypical mycobacteria |
| AM | aviation medicine |
| AM | avoidable mortality |
| AMA | acute metabolic alkalosis |