polyphonic, a. [Gr. ; poly`s many + sound: cf. F. polyphone.].
Having a multiplicity of sounds. [1913 Webster]
Characterized by polyphony; as, Assyrian polyphonic characters. [1913 Webster]
Consisting of several tone series, or melodic parts, progressing simultaneously according to the laws of counterpoint; contrapuntal; as, a polyphonic composition; -- opposed to homophonic, or monodic. [1913 Webster]