/ Thesaurus / E Synonyms of echinoderm genus Find synonyms for: Noun1. echinoderm genus, genususage: a genus of echinodermsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language