Definition of surgeon noun from the Oxford Advanced Learner's Dictionary

 

surgeon

 noun
noun
BrE BrE//ˈsɜːdʒən//
 
; NAmE NAmE//ˈsɜːrdʒən//
 
Medical staff, Operations, Professions
 
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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 Wordfindercure, doctor, examine, medicine, patient, practice, prescribe, receptionist, specialist, surgeon See related entries: Medical staff, Operations, Professions 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’.Extra examples A plastic surgeon successfully rebuilt his nose. He is determined to qualify as a surgeon. Many people are terrified at the thought of the surgeon’s knife. Surgeons performed two operations on him yesterday. Surgeons removed her right leg above the knee. a board-certified plastic surgeon the surgeon who will operate on you a brain/​heart surgeon
See the Oxford Advanced American Dictionary entry: surgeon