Definition of "sphincters" [sphincters]

• Plural form of sphincter. (noun)

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• "This colon hath many windings, that the excrements pass not away too fast: the right gut is straight, and conveys the excrements to the fundament, whose lower part is bound up with certain muscles called sphincters, that the excrements may be the better contained, until such time as a man be willing to go to the stool."
• "The duodenum is separated from the stomach by a ring-like muscular valve, the pylorus; this valve belongs to the class of muscles called sphincters, which, under ordinary circumstances, are closed, but which relax to open the circular central aperture."
• "So many sphincters tightening or going loose, but maybe that's a little too close to hard core Republicans like Craig and Vitter."