harmonic

harmonic - noun

a tone that is a component of a complex sound

any of a series of musical tones whose frequencies are integral multiples of the frequency of a fundamental

harmonic - adjective

of or relating to harmony as distinct from melody and rhythm
of or relating to harmonics
of or relating to the branch of acoustics that studies the composition of musical sounds
relating to vibrations that occur as a result of vibrations in a nearby body
involving or characterized by harmony

harmonic - thesaurus