coloration
/ˌkʌləˈreɪʃən/(亦作colouration)
noun
1
- a visual appearance with regard to colour颜色, 色彩; 色泽：
some bacterial structures take on a purple coloration.
有些细菌结构呈紫色。
1.1
- the natural colour or variegated markings of animals or plants（动植物的）天然颜色（或斑纹）：
the red coloration of many maples
许多枫树的天然红色
mass noun many insects have bright coloration.许多昆虫的颜色鲜艳。
1.2
- a scheme or method of applying colour着色法; 染色法。
2
- a specified pervading character or tone of something普遍特性：
the movement has taken on a fundamentalist coloration.
这一运动已呈现出原教旨主义色彩。
2.1
- a variety of musical or vocal expression染色效应; 音调（或音质）的变化：
the subtle colorations of big-box speakers
箱式扬声器细微的染色效应
mass noun a skilful singer can do much with coloration.一个熟练的歌手能以音调的变化唱出许多花腔。
词源
early 17th cent.: from late Latin coloratio（n-）, from colorare 'to colour'.