surgery surgery /ˈsɝːdʒɝi/

noun

1. (surgery) a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body  ( surgery , surgical operation , surgical procedure , operation , surgical process , op [Informal] )
   (surgery) 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
   they will schedule the operation as soon as an operating room is available
    He died while undergoing surgery
   he died while undergoing surgery
   
   
2. A room in a hospital equipped for the performance of surgical operations  ( operating room [ N. American] , operating theater [American] , operating theatre , OR [ N. American] , surgery )
   a room in a hospital equipped for the performance of surgical operations
    Great care is taken to keep the operating rooms aseptic
   great care is taken to keep the operating rooms aseptic
   
   
3. [British] A room where a doctor or dentist can be consulted  ( surgery [British] )
   a room where a doctor or dentist can be consulted
    He read the warning in the doctor's surgery
   he read the warning in the doctor's surgery
   
   
4. The branch of medical science that treats disease or injury by operative procedures  ( surgery )
   the branch of medical science that treats disease or injury by operative procedures
    He is professor of surgery at the Harvard Medical School
   he is professor of surgery at the Harvard Medical School