constrictor
/kənˈstrɪktə(r)/noun
1
- a snake that kills by coiling round its prey and asphyxiating it蟒, 大蟒; 大蛇。
1.1
- Families Boidae and Pythonidae, and some members of other families (in particular Colubridae).蚺科和蟒科及其他科的一些成员（尤指遊蛇科）。
2
- （亦作constrictor muscle）Anatomy a muscle whose contraction narrows a vessel or passage【剖】括约肌, 缩肌。
2.1
- each of the muscles which constrict the pharynx咽下缩肌。
词源
early 18th cent.: modern Latin, from constrict- 'bound tightly together', from the verb constringere （see CONSTRAIN）.