Capable of becoming read or pronounced much more than one-way: said of a written character.
comprising or having many voices or noises.
In music: Noting a technique of structure or a-work by which a couple of voice-parts tend to be simultaneously combined without losing their independent character, however with harmonious effect; contrapuntal: opposed on a single part to monodic, monophonic, and homophonic, and on another to harmonic: because, a fugue is a polyphonic as a type of structure
Noting a guitar that will be effective at producing more than one tone at any given time, as an organ or a harp. Additionally polyphonous.