/ ˈsɜːdʒən; NAmE ˈsɜːrdʒən/ noun
a doctor who is trained to perform surgery (= medical operations that involve cutting open a person's body) :
a brain / heart, etc. surgeon
—compare physician
••
WORD ORIGIN
Middle English : from Anglo-Norman French surgien , contraction of Old French serurgien , based on Latin chirurgia , from Greek kheirourgia handiwork, surgery, from kheir hand + ergon work.