echinoderm
ec·hi·no·derm
noun
1.
marine invertebrates with tube feet and calcite-covered five-part radially symmetrical bodies
Origin
From French échinoderme, corresponding to echino- + -derm, after plural of 18th-century Latin echinoderma.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.