adj.
1.of or relating to harmony as distinct from melody and rhythm
2.of or relating to the branch of acoustics that studies the composition of musical sounds
3.relating to vibrations that occur as a result of vibrations in a nearby body
4.involving or characterized by harmony harmonic n.
1.a tone that is a component of a complex sound
Idiom of the Day
ruffle (someone's) feathers
to upset or annoy someone
I do not want to ruffle my friend's feathers as he is in a bad mood today.