- [uncountable]
the process of changing colour, or making something change colour, in a way that makes it look less attractive 变色;退色 discoloration caused by the sun 因日照引起的退色
- [countable]
a place where something has changed colour in a way that makes it look less attractive 变色处;退色处 He began to notice a few small brown discolorations on his skin and made an appointment to see the doctor. 他开始注意到他的皮肤上有一些小的棕色斑点,于是约了时间去看医生。