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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Zoology) zoology of or relating to an osculum
2. of or relating to the mouth or to kissing
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈɒs kyə lər)

1. pertaining to an osculum.
2. pertaining to the mouth or kissing.
os`cu•lar′i•ty (-ˈlær ɪ ti) n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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cirrhosus have also been shown to deposit their eggs near the oscular cavity of the sponge Mycale adhaerens, which is thought to provide protection from predation (Munehara and others 1991).
The minimalist performance was followed by some equally abrasive and endearingly maniacal videos with titles like Grading Tips for Teachers, 2001, and Tony's Oscular Pets, 2003.