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Medical Term:

sphincter

Pronunciation: sfingk'ter

Definition: A muscle that encircles a duct, tube, or orifice in such a way that its contraction constricts the lumen or orifice.

Synonym(s): musculus sphincterTA, sphincter muscleTA

[G. sphinkter, a band or lace]

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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