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sphincter |
3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Sphincter \Sphinc"ter\, 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. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Sphincter \Sphinc"ter\, a. (Anat.) Of pertaining to or designating, a sphincter; as a sphincter muscle. From WordNet r 1.6 [wn]: sphincter n : a ring of muscle that contracts to close an opening [syn: {anatomical sphincter}, {sphincter muscle}]
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