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1. Oxford Dictionary

   melanism

   • IPA[ˈmɛlənɪz(ə)m]

   英式

   • n.
     darkening of body tissues caused by excessive production of melanin, especially as a form of colour variation in animals.

   • noun: melanism

2. • 相關詞

   industrial melanism

   • n.
     the prevalence of dark-coloured varieties of animals (especially moths) in industrial areas ...

   Oxford Dictionary

   industrial melanism

   • n.
     the prevalence of dark-colored varieties of animals (especially moths) in industrial areas ...

   Oxford American Dictionary

3. • 更多解釋

   melanism

   • IPA[ˈmeləˌnizəm]

   美式

   • n.
     unusual darkening of body tissues caused by excessive production of melanin, especially as a ...

   Oxford American Dictionary