/ Thesaurus / F Synonyms of family helodermatidae Find synonyms for: Noun1. Helodermatidae, family Helodermatidae, reptile familyusage: only known venomous lizardsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language