/ Thesaurus / A Synonyms of alpha naphthol Find synonyms for: Noun1. alpha-naphthol, naphtholusage: an isomer of naphthol used in dyesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: taut Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language