Definitions for osculumˈɒs kyə ləm
This page provides all possible meanings and translations of the word osculum
Random House Webster's College Dictionary
os•cu•lum*ˈɒs kyə ləm(n.)(pl.)-la
a small mouthlike aperture, as of a sponge.
Origin of osculum:
1605–15; < NL, L ōsculum <ōs mouth
an opening in a sponge from which water is expelled.
The osculum is an excretory structure in the living sponge, a large opening to the outside through which the current of water exits after passing through the spongocoel. Wastes diffuse into the water and the water exits through the osculum at a velocity of nearly 8.4 cm/second, carrying away with it the sponge's wastes. The size of the osculum is regulated by the myocyte. Its size, in turn, determines the amount of water flowing through the sponge.
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