/ Dictionary / Index P polychromy: Meaning and Definition of Find definitions for: pol•y•chro•my Pronunciation: (pol'ē-krō"mē), [key] — n. the art of employing many colors in decoration, as in painting or architecture. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polychrome polycistronic Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language