Meaning of tricuspid valve

tricus'pid valve'

Pronunciation: [key]
— Anat. Anat.
  1. the valve, consisting of three triangular flaps of tissue between the right auricle and ventricle of the heart, that keeps blood from flowing back into the auricle. Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.