Surgery

The art of healing by manual operation; that branch of medical science which treats of manual operations for the healing of diseases or injuries of the body; that branch of medical science which has for its object the cure of local injuries or diseases, as wounds or fractures, tumors, etc., whether by manual operation or by medicines and constitutional treatment.

A surgeon's operating room or laboratory.

a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body; "they will schedule the operation as soon as an operating room is available"; "he died while undergoing surgery"

a room where a doctor or dentist can be consulted; "he read the warning in the doctor's surgery"