apopyle Zool.
(ˈæpəʊpaɪl)
[f. Gr. ἀπό apo- + πύλη gate.]
An aperture by which an endodermal chamber in a sponge communicates with the central cavity or paragaster.
| 1887 W. J. Sollas in Encycl. Brit. XXII. 414/1 A comparatively large aperture, which we may term for distinction an apopyle. 1888 [see paragaster]. |