sphincter
n. புழைவாய்ச் சுரிதசை.
Sphinc"ter, n. Etym: [NL., fr. (Anat.) Defn: A muscle which surrounds, and by its contraction tends to close, a natural opening; as, the sphincter of the bladder. Sphinc"ter, a. (Anat.) Defn: Of, pertaining to, or designating, a sphincter; as, a sphincter muscle.