Sphincter

Acceptable For Game Play - US & UK word lists

This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

The American Heritage® Dictionary of the English Language, 4th Edition
  • n. A ringlike muscle that normally maintains constriction of a body passage or orifice and that relaxes as required by normal physiological functioning.
    • Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. A ringlike band of muscle that surrounds a bodily opening, constricting and relaxing as required for normal physiological functioning.
    • the GNU version of the Collaborative International Dictionary of English
  • n. A muscle which surrounds, and by its contraction tends to close, a natural opening.
  • adj. Of, pertaining to, or designating, a sphincter.
    • The Century Dictionary and Cyclopedia
  • n. An orbicular, circular, or annular muscle surrounding and capable of closing a natural orifice or passage of the body.
  • n. The sphincter ani proper, sphincter externus, or external sphincter is a thin, flat plane of voluntary muscular fibers supplied by hemorrhoidal branches of nerves from the sacral plexus, surrounding the anus, subcutaneous and intimately adherent to the integument, of elliptical form 3 or 4 inches in long diameter, and an inch wide across. It arises from the tip of the coccyx, and is inserted into the tendinous raphe of the perineum. Like most sphincters. it consists of symmetrical lateral halves united by a raphe in front of and behind the opening it incloses.
  • n. The sphincter recti, sphincter internus, or internal sphincter surrounds the lower end of the rectum, forming a muscular ring about an inch in extent and a quarter of an inch thick, and consists of an aggregation and thickening of the circular fibers of the gut. This sphincter is involuntary, and in health maintains its tonic contractility, which yields by reflex action to the pressure of the contents of the bowel.
    • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • n. a ring of muscle that contracts to close an opening
    • Hypernym
    Words that are more generic or abstract
    muscle    musculus   
    Synonym
    Words with the same meaning
    anatomical sphincter   
    Same Context
    Words that are found in similar contexts
    manometry    flexor    orifice    meatus    musculature   
     
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