/ Thesaurus / T Synonyms of tyrothricin Find synonyms for: Noun1. tyrothricin, antibiotic, antibiotic drugusage: a mixture of antibiotics applied locally to infections caused by Gram-positive bacteriaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language