osculum
noun
a small mouthlike aperture, as of a sponge.
oscula
-
pluralof osculum.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Those “little mouths” are called ostia, and the openings where water flows out are oscula.
From New York Times ● Aug. 10, 2022
The water from outside therefore flows in at the pores and finally makes its way out of the oscula.
From Freshwater Sponges, Hydroids & Polyzoa by Nelson Annandale
From hence all faecal and other matter is discharged through the oscula, the larger openings observed on the surface of the sponge.
From Scientific American Supplement, No. 601, July 9, 1887 by Various
New oscula are formed by a kind of proliferation that renders the structure still more complex than it is when only one exhalent aperture is present.
From Freshwater Sponges, Hydroids & Polyzoa by Nelson Annandale
The surface smooth; oscula inconspicuous, surrounded by shallow and ill-defined radiating furrows; a very stout basal membrane present.
From Freshwater Sponges, Hydroids & Polyzoa by Nelson Annandale
