Also found in: Wikipedia.
Any of various marine hydroids of the genus Obelia that exist chiefly as colonies of polyps growing in a branchlike form on surfaces such as piers or rocks.
[New Latin Obelia, genus name, probably from Greek obeliās, a loaf baked on a spit, from obelos, a spit.]
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.
(Animals) a type of coelenterate of the genus Obelia that is found as a woolly mass growing on pieces of wood, etc in the sea
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
o•be•lia(oʊˈbil yə, oʊˈbi li ə)
n., pl. -lias.
any colonial marine hydrozoan of the genus Laomedea (Obelia), appearing as a delicate, mosslike growth on rocks, pilings, etc.
[1865–70; < New Latin < Greek obelías a loaf toasted on a spit =obel(ós) a spit (see obelisk) + -ias n. suffix]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.