Also found in: Medical, Encyclopedia, Wikipedia.
Related to osculum: spongin, choanocyte, Osculum infame


n. pl. os·cu·la (-kyə-lə)
A large opening in a sponge, through which water is expelled.

[Latin ōsculum, diminutive of ōs, mouth; see ōs- in Indo-European roots.]

os′cu·lar adj.


(ˈɒskjʊləm) or


n, pl -la (-lə)
(Zoology) zoology a mouthlike aperture, esp the opening in a sponge out of which water passes
[C17: from Latin: a kiss, little mouth, diminutive of ōs mouth]


(ˈɒs kyə ləm)

n., pl. -la (-lə).
a small mouthlike aperture, as of a sponge.
[1605–15; < New Latin, Latin ōsculum <ōs mouth]
References in periodicals archive ?
The water was drawn from a single osculum from each specimen over a period of 2 to 3 min to ensure that only the exhalant flow was sampled (based on preliminary measurements using the release of fluorescent dye to determine flow rates).
Tu tantum dignare et meum osculum, cum libuerit, agnoscere"): cf.
75 cm thick and were beige (flesh) in color with identifiable surface osculum (Figure 1, top).
8) Los rituales del vasallo y del amor se asimilan y asi encontramos actos como la Immixtio manuum, en la que el Senor toma entre sus manos las del vasallo; el volo, donde el vasallo expresa su voluntad y su fidelidad, y el osculum, beso de confirmacion de las obligaciones contraidas.
Panegyris announces her plan to kill their father with kindness: she says they will make the first move by kissing him (farre advorsum homini occupemus osculum, 89).