[ ap-uh-pahyl ]
/ ˈæp əˌpaɪl /

noun Zoology.

(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.
Compare prosopyle.

Origin of apopyle

1885–90; apo- + Greek pýlē gate, entrance; see pylon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019