sphincter
/ˈsfɪŋktə(r)/noun
- Anatomy a ring of muscle surrounding and serving to guard or close an opening or tube, such as the anus or the openings of the stomach【剖】括约肌。
派生词
sphincteral
adjectivesphincteric
adjective词源
late 16th cent.: via Latin from Greek sphinktēr, from sphingein 'bind tight'.