1. The mouthlike aperture in the body wall of a sponge (see Porifera) through which water leaves the body cavity.
2. Any of the suckers on the head (scolex) of a tapeworm, by which it attaches itself to the gut wall of its host.
"osculum." A Dictionary of Biology. . Encyclopedia.com. (February 15, 2019). https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/osculum-0
"osculum." A Dictionary of Biology. . Retrieved February 15, 2019 from Encyclopedia.com: https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/osculum-0
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