Source: The Collaborative International Dictionary of English v.0.48
Sphincter \Sphinc"ter\, n. [NL., fr. ??? to bind tight.] (Anat.)
A muscle which surrounds, and by its contraction tends to
close, a natural opening; as, the sphincter of the bladder.
[1913 Webster]
Source: The Collaborative International Dictionary of English v.0.48
Sphincter \Sphinc"ter\, a. (Anat.)
Of, pertaining to, or designating, a sphincter; as, a
sphincter muscle.
[1913 Webster]