Dictionary > English Dictionary > Definition, synonym and antonym of sphincter
Meaning of sphincter by Wiktionary Dictionary

sphincter


    Etymology

    From Late Latin sphincter, from Ancient Greek σφιγκτήρ ( sphinktēr, “band, contractile muscle” ), from σφίγγω ( sphingō, “I bind tight” ). Compare sphinx, "the strangler" .

    Pronunciation

    • ( UK ) IPA: /ˈsfɪŋktə/

    Noun

    sphincter ( plural: sphincters )

    1. ( anatomy ) A ringlike band of muscle that surrounds a bodily opening, constricting and relaxing as required for normal physiological functioning.

    Synonyms

    Related terms

    See also



Explanation of sphincter by Wordnet Dictionary

sphincter


    Noun
    1. a ring of muscle that contracts to close an opening



    Definition of sphincter by GCIDE Dictionary

    sphincter


    1. Sphincter n. [NL., fr. to bind tight.] ( Anat. ) A muscle which surrounds, and by its contraction tends to close, a natural opening; as, “the sphincter of the bladder”.

    2. Sphincter, a. ( Anat. ) Of, pertaining to, or designating, a sphincter; as, “a sphincter muscle”.