1 Music relating to or characterized by harmony:a basic four-chord harmonic sequence relating to or denoting a harmonic or harmonics. 2 Mathematics relating to a harmonic progression: the resonant frequencies of the vibrations bear simple harmonic relationships to each other Physics relating to component frequencies of a complex oscillation or wave: the response of any linear circuit can be found by superposing the responses to each harmonic component of the signal
3 Astrology using or produced by the application of a harmonic:harmonic charts
1 Music an overtone accompanying a fundamental tone at a fixed interval, produced by vibration of a string, column of air, etc. in an exact fraction of its length. a note produced on a musical instrument as an overtone, e.g. by lightly touching a string while sounding it. 2 Physics a component frequency of an oscillation or wave.
3 Astrology a division of the zodiacal circle by a specified number, used in the interpretation of a birth chart: the fifth harmonic