/ Thesaurus / W Synonyms of western diamondback rattlesnake Find synonyms for: Noun1. Western diamondback, Western diamondback rattlesnake, Crotalus atrox, rattlesnake, rattlerusage: largest and most dangerous North American snake; of southwestern United States and MexicoWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language