/ Dictionary / Index N nonharmonic tone: Meaning and Definition of Find definitions for: non'har•mon'ic tone' Pronunciation: (non'här-mon'ik, non"-), [key] — Music. Music. a tone sounding with a chord of which it is not a chord tone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. non grata nonhero Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language