/ Dictionary / Index G glycol: Meaning and Definition of Find definitions for: gly•col Pronunciation: (glī'kôl, -kol), [key] — n. Also calleda colorless, sweet liquid, CHO, used chiefly as an automobile antifreeze and as a solvent. Also calledany of a group of alcohols containing two hydroxyl groups. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: glycol (Thesaurus) glycogen storage disease glycolate Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language