/ Thesaurus / D Synonyms of dihydric alcohol Find synonyms for: Noun1. diol, glycol, dihydric alcohol, alcoholusage: any of a class of alcohols having 2 hydroxyl groups in each moleculeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language