/ Thesaurus / G Synonyms of genus dieffenbachia Find synonyms for: Noun1. Dieffenbachia, genus Dieffenbachia, monocot genus, liliopsid genususage: evergreen perennial herbs of tropical America with lush foliage and poisonous sap; often cultivated as houseplantsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language