echinodermatous

Variant of echinoderm

echinoderm definition

echi·no·derm (ē kīnō dʉrm′, eki nō-)

noun

any of a phylum (Echinodermata) of marine animals with a water-vascular system, and usually with a hard, spiny skeleton and radial body, including the starfishes and sea urchins

Etymology: < ModL Echinodermata: see echino- & -derm

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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