HOW TO PRONOUNCE
sphincter
/ˈsfɪŋk.tɚ/
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American Pronunciation Guide · 1:05
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What does sphincter mean?
noun
- A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.
Definitions regrouped for readability · CC BY-SA 4.0
IPA pronunciation
/ˈsfɪŋk.tɚ/
Wiktionary contributors · CC BY-SA 4.0 ↗Pronunciation varies by speaker and region. About these dictionary pronunciations.
In the pages of books
See this word in context.
The sphincter muscles cease to act, and no longer retain the contents of the body.
Capuron, Gravis, and Lebrun all report accouchement through a perineal perforation, without alteration in the sphincter ani or the fourchet.
More book examples (2)
It is also so constructed that the natural constriction of the sphincter muscles holds it firmly in position in the rectum, and while affording the water free passage into the colon, it prevents the escape of the fluid externally, thus rendering soiled garments impossible.
It enlarges towards its posterior extremity, and is furnished with a circular muscle, the sphincter ani, adapted to preserve the anus closed, and to retain the fæculent matter until so much of it is accumulated in the rectum as to excite a desire to discharge it.