subumbrella(redirected from subumbrellas)
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The concave underside of the medusa of a jellyfish or other cnidarian.
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.
the muscular and concave underside of the umbrella of a jellyfish
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
sub•um•brel•la(ˌsʌb ʌmˈbrɛl ə)
n., pl. -las.
the concave undersurface of a jellyfish.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.