Dictionary
ap•o•pyle
Pronunciation: (ap'u-pīl"), [key]—
n. Zool.
(in sponges) a pore in each of the saclike chambers formed by the evagination of the body wall, through which water passes into the excurrent canals. Cf.
prosopyle.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.