DICT.TW Dictionary Taiwan

 dis·col·or·ation /(ˌ)dɪsˌkʌləˈreʃən/
 變色;汙點

 Dis·col·or·a·tion n.
 1. The act of discoloring, or the state of being discolored; alteration of hue or appearance.
 2. A discolored spot; a stain.
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 discoloration
      n 1: a soiled or discolored appearance; "the wine left a dark
           stain" [syn: stain, discolouration]
      2: the act of changing the natural color of something by making
         it duller or dingier or unnatural or faded [syn: discolouration]