- A.B.C. liniment
- A.B.C. process
- Aaron's sign
- aasistive movement
- aatigmatism
- aatigmatism against the rule
- ab
- abasia
- abate
- abatic
- abaxial, abaxile
- Abbe's operation
- Abbe's operation's ring
- Abbe's operation's string method
- Abderhalden reaction or test
- abdominal
- abdominal center, centre
- abdominal nephrectomy
- abdominal pool
- abdominal regions