- a small mouthlike aperture, as of a sponge.
Origin of osculum
Examples from the Web for oscula
Historical Examples of oscula
The oscula are large and ragged on the edges; the shape is irregular.
Oscula numerous but minute and inconspicuous, never star-shaped.
Generally cup-shaped; oscula on inner side of cup or on upper flat surface; very soft and elastic.
The water from outside therefore flows in at the pores and finally makes its way out of the oscula.
The external membrane in many Spongillid is prolonged round and above the oscula so as to form an oscular collar.
- zoology a mouthlike aperture, esp the opening in a sponge out of which water passes
Word Origin for osculum
- A pore or minute opening.