eu·ry·py·lous \|yu̇rə|pīləs\adjective oreu·ry·pyl·lous\-|pil-\ Etymology:eurypylous from eury- + pyl- + -ous; eurypyllous alteration of eurypylous : having a wide opening; specificallyof a sponge: having a direct connection between the flagellated chambers and their apopyles and prosopyles