/ Thesaurus / C Synonyms of cryptobranchus alleganiensis Find synonyms for: Noun1. hellbender, mud puppy, Cryptobranchus alleganiensis, salamanderusage: large salamander of North American rivers and streamsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language