/ Thesaurus / B Synonyms of botulinum toxin Find synonyms for: Noun1. botulinum toxin, neurotoxin, neurolysinusage: any of several neurotoxins that are produced by the anaerobic bacterium Clostridium botulinum; causes muscle paralysisWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language