Word Direct Answers

sphincter

sphincter is defined in Webster's Unabridged Dictionary (1913) with 2 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.A muscle which surrounds, and by its contraction tends to close, a natural opening; as, the sphincter of the bladder.
  2. 2.Of, pertaining to, or designating, a sphincter; as, a sphincter muscle.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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