/ Dictionary / Index P polytonality: Meaning and Definition of Find definitions for: pol•y•to•nal•i•ty Pronunciation: (pol"ē-tō-nal'i-tē), [key] — n. Music. the use of more than one key at the same time. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polytonality (Thesaurus) polytonal polytriglyph Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language