noun
(medicine, usually uncountable) A procedure involving major incisions to remove, repair, or replace a part of a body.
(medicine) The medical specialty related to the performance of surgical procedures.
A room or department where surgery is performed.
(British) A doctor's office; a clinic.
(British) A medical practitioner’s office hours.
(British) Any arrangement where people arrive and wait for an interview with certain people, particularly a politician. cf. clinic.
(finance, bankruptcy, slang) A pre-packaged bankruptcy or "quick bankruptcy".
(topology) The production of a manifold by removing parts of one manifold and replacing them with corresponding parts of others.
(by extension, figurative) Drastic changes made to anything.