/ Dictionary / Index H harmonics: Meaning and Definition of Find definitions for: har•mon•ics Pronunciation: (här-mon'iks), [key] — n. Music. the science of musical sounds. the partials or overtones of a fundamental tone. Cf. overtone (def. 1). the flageoletlike tones of a string, as a violin string, made to vibrate so as to bring out an overtone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: harmonics (Thesaurus) harmonic progression harmonic series Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language