coloration
noun(British English also colouration)
[uncountable] (specialist)the natural colours and patterns on a plant or an animal （植物或动物的）自然色彩，自然花纹 Many insects have bright coloration, which has evolved as a protection against predators. 许多昆虫有鲜艳的自然花纹，这是防御捕食者的一种进化。 The coloration of the leaves is deeper purple or mauve. 叶子的颜色是深紫色或淡紫色。
Word Originearly 17th cent.: from late Latin coloratio(n-), from colorare ‘to colour’.