/ Dictionary / Index P polyene: Meaning and Definition of Find definitions for: pol•y•ene Pronunciation: (pol'ē-ēn"), [key] — n. Chem. a hydrocarbon containing two or more double bonds, often conjugated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polyembryony polyester Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language