discoloration是什么意思？

discoloration

英[disˌkʌləˈreiʃən] 美[dɪsˌkʌləˈreʃən]

• n. 变色，褪色，污染；

例句

• AbFabric, webbing band or strap getting discoloration. 布料 、 织带、背带色差×.
• Valuably diminishes dark circle and discoloration for clear eyes. 消除黑眼圈、晦暗,创造明亮的眼眸.
• discoloration caused by the sun 因日照引起的退色
• Erythema, edema and a purple discoloration of the eyelids are of dermatomyositis. 眼睑红斑 、 水肿、淡紫色是皮肌炎的特征.

柯林斯高阶英汉双解学习词典释义

• V-ERG
  (使)变色;(使)褪色
  If something discolours or if it is discoloured by something else, its original colour changes, so that it looks unattractive.
  例句
  A tooth which has been hit hard may discolour... 受过重击的牙齿可能会变色。 Some oil had seeped out, discolouring the grass. 有些油渗出来了，把草地染得变了颜色。

英英词典释义

• Noun
  1. a soiled or discolored appearance;
  "the wine left a dark stain"
  2. the act of changing the natural color of something by making it duller or dingier or unnatural or faded

行业词典

• 物理学： 褪色；
  药学： 变色；