/ Thesaurus / Z Synonyms of zigadenus Find synonyms for: Noun1. Zigadenus, genus Zigadenus, liliid monocot genususage: genus of mostly North American poisonous plants; sometimes placed in family MelanthiaceaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language