Hypertext Webster Gateway: "sphincter"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Sphincter \Sphinc"ter\, a. (Anat.)
Of, pertaining to, or designating, a sphincter; as, a
sphincter muscle.
From WordNet (r) 1.7 (wn)
sphincter
n : a ring of muscle that contracts to close an opening [syn: {anatomical
sphincter}, {sphincter muscle}]
Additional Hypertext Webster Gateway Lookup
Gateway by dict@stokkie.net
stock only wrote the gateway and does not have any control over the contents;
see the Webster Gateway FAQ,
and also the Back-end/database links and credits.