| Rxn | Reaction |
|---|---|
| ADR | activation, depression, repetition [in bone remodeling]; adrenodoxin reductase; Adriamycin; adverse ... |
| AHR | antihyaluronidase reaction; Association for Health Records; atrial heart rate |
| AMLR | autologous mixed lymphocyte reaction |
| ANAP | agglutination negative, absorption positive [reaction] |