sphincter

play
noun sphinc·ter \ˈsfiŋ(k)-tər\

Definition of sphincter

  1. :  an annular muscle surrounding and able to contract or close a bodily opening

sphincteric

play \sfiŋ(k)-ˈter-ik\ adjective

Recent Examples of sphincter from the Web

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Origin and Etymology of sphincter

Late Latin, from Greek sphinktēr, literally, band, from sphingein to bind tight


SPHINCTER Defined for English Language Learners

sphincter

play
noun

Definition of sphincter for English Language Learners

  • medical : a ring-shaped muscle that surrounds a body opening and that can tighten to close the opening


Medical Dictionary

sphincter

play
noun sphinc·ter \ˈsfiŋ(k)-tər\

Medical Definition of sphincter

  1. :  an annular muscle surrounding and able to contract or close a bodily opening—see anal sphincter, cardiac sphincter, precapillary sphincter, pyloric sphincter

sphincteral

\-t(ə-)rəl\play adjective

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to relieve or lessen

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