surgeon/surgery/surgical

surgeon /ˈsə:dʒən/ n. ［c］ 外科医生(cf. physician内科医生)：an operating surgeon 外科手术医师；a naval surgeon 海军军医

 surgery /ˈsə:dʒəri/ n. 1.［u］外科;［c］外科手术: oral surgery 口腔外科；specialize in surgery专攻外科学 The condition is serious, it will need a surgery at once. 情况很严重，要立刻实施外科手术。 2.［c］手术室: The injured is being given an operation in the surgery. 伤号正在手术室接受手术。

 surgical /ˈsə:dʒikəl/ adj. 外科(医术)的，外科用的，外科手术的：surgical pathology外科病理学；a surgical operation外科手术The hospital has a medical ward and a surgical ward.这家医院有内科病房和外科病房。All surgical instruments must be sterilized before use.所有的外科手术器械在使用之前,必须消毒。