incision
noun uk/ɪnˈsɪʒ.ən/ us/ɪnˈsɪʒ.ən/
[ C or U ]（尤指手术的）切口
an opening that is made in something with a sharp tool, especially in someone's body during an operation
The surgeon makes a small incision into which a tube is inserted. 外科医师切开一个小口子把管子插了进去。
[ C ] medical specialized因手术切口而留下的伤（或疤）
a wound or scar made by a surgical cut