/ Dictionary / Index T twelve-tone: Meaning and Definition of Find definitions for: twelve-tone Pronunciation: (twelv'tōn'), [key] — adj. Music. based on or incorporating the twelve-tone technique: twelve-tone music. using or advocating the twelve-tone technique: a twelve-tone composer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. twelve-string guitar twelve-tone row Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language