Definition of: surgery

(sûr′jər·ē) noun plural ·ger·ies
1. The branch of medical science that relates to body injuries, deformities, and morbid conditions that require being remedied by operations or instruments.
2. A place where surgical treatment or advice is regularly given; a surgeon's office; an operating room.
3. The work of a surgeon.
4. The treatment of diseases or injuries to nonhuman organisms by like methods: tree surgery. [<OF surgerie, contraction of serurgerie, ult. <LL chirurgia <Gk. cheirourgia a handicraft <cheir, cheiros the hand + ergein work]