poly·phon·ic /ˌpɑliˈfɑnɪk/
  (a.)多音的,有韻律變化的,對位法的
  Pol·y·phon·ic a.
  1. Having a multiplicity of sounds.
  2. Characterized by polyphony; as, Assyrian polyphonic characters.
  3. Mus. 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.
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  polyphonic
       adj 1: having two or more phonetic values; "polyphonic letters such
              as `a'"
       2: of or relating to or characterized by polyphony; "polyphonic
          traditions of the baroque" [syn: polyphonous]
       3: having two or more independent but harmonically related
          melodic parts sounding together [syn: contrapuntal]
          [ant: monophonic]