| a person trained to perform under the supervision of a physician many clinical procedures traditionally performed by a physician, as diagnosing and treating minor ailments. Abbreviation: PA |
physician's assistant phy·si·cian's assistant (fĭ-zĭsh'ənz)
n. pl. physicians' assistants
Abbr. PA, P.A. A person trained and licensed to provide basic medical services, usually under the supervision of a physician.