harmonic in WordNet English dictionary

1. involving or characterized by harmony
   consonant  harmonic  harmonical  harmonized  harmonised 
   
2. of or relating to harmony as distinct from melody and rhythm
   "subtleties of harmonic change and tonality"- Ralph Hill
   harmonic 
   
3. of or relating to the branch of acoustics that studies the composition of musical sounds
   "the sound of the resonating cavity cannot be the only determinant of the harmonic response"
   harmonic 
   
4. of or relating to harmonics
   harmonic 
   
5. relating to vibrations that occur as a result of vibrations in a nearby body
   "sympathetic vibration"
   harmonic  sympathetic 
   

1. any of a series of musical tones whose frequencies are integral multiples of the frequency of a fundamental
   harmonic 
   
2. a tone that is a component of a complex sound
   harmonic