1 [U] medical treatment in which your body is cut open so that part of it can be removed or repaired 外科；手术: to undergo surgery 接受外科手术 ☞Look at plastic surgery and operation. 参看plastic surgery及operation。

2 [C,U] the place or time when a doctor or dentist sees patients 诊所；应诊时间: Surgery hours are from 9.00 to 11.30. 应诊时间是9点至11点30分。