| AIR | amino-imidazole ribonucleotide; average impairment rating |
|---|---|
| AT | abdominal thrusts; achievement test; Achilles tendon; Achard-Thiers [syndrome]; adaptive thermogenes... |
| at | air tight; atom, atomic |
| AV | Adriamycin and vincristine; air velocity; allergic vasculitis; anteroventral; anteversion; anticipat... |
| av | air velocity; average; avulsion |