oscula

noun, plural os·cu·la [os-kyuh-luh] /ˈɒs kyə lə/.

1. a small mouthlike aperture, as of a sponge.

noun plural -la (-lə)

1. zoology a mouthlike aperture, esp the opening in a sponge out of which water passes

n. pl. os•cu•la (-lə)

1. A pore or minute opening.