sphincter

名词 n.
/ˈsfɪŋk.tɚ/

英文释义

名词 n.
  1. 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.
    — the sphincter of the bladder

词形变化

sphincters plural sphincteres plural

词源

Etymology tree
Late Latin sphinctērlbor.
English sphincter
Learned borrowing from Late Latin sphinctēr (“the muscle of the anus”), from Ancient Greek σφῐγκτήρ (sphĭnktḗr, “lace, band; contractile muscle”), ultimately of Pre-Greek origin. Possibly related to sphinx (“the strangler”).
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