castellated
/ˈkæstəleɪtɪd/adjective
1- having battlements有城垛的, 有雉堞的：
a castellated gatehouse.
一个有雉堞的门楼。
1.1
- (of a nut or other mechanical part) having grooves or slots on its upper face（螺母或其他机器零件）上面有纹的, 带槽的。
词源
late 17th cent.: from medieval Latin castellatus, from Latin castellum （see CASTLE）.