etiolation
 青白化,黃化,蒼白化


 eti·o·la·tion /ˌɪtɪəˈleʃən/ 名詞
 黃化(現象)


 E·ti·o·la·tion n.
 1. The operation of blanching plants, by excluding the light of the sun; the condition of a blanched plant.
 2. Med. Paleness produced by absence of light, or by disease.

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 etiolation
      n 1: a pale and sickly appearance; "his etiolation signaled years
           in prison"
      2: the act of weakening by stunting the growth or development
         of something; "the etiolation of the critical tradition"
      3: (botany) the act of causing a plant to develop without
         chlorophyll by growing it without exposure to sunlight;
         "the etiolation of celery"