/ Thesaurus / L Synonyms of laryngotracheobronchitis Find synonyms for: Noun1. laryngotracheobronchitis, inflammation, redness, ruborusage: inflammation of the larynx and trachea and bronchial passagewaysWordNet 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