/ Dictionary / Index P polyol: Meaning and Definition of Find definitions for: pol•y•ol Pronunciation: (pol'ē-ôl", -ol"), [key] — n. Chem. an alcohol containing three or more hydroxyl groups; a polyhydric alcohol. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polyoestrous polyolefin Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language