chromatism
  色差,變色
  chro·ma·tism /ˈkroməˌtɪzəm/ 名詞
  異常著色
  Chro·ma·tism n.
  1. Optics The state of being colored, as in the case of images formed by a lens.
  2. Bot. An abnormal coloring of plants.
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  chromatism
       n 1: hallucinatory perception of colored lights
       2: abnormal pigmentation