From Longman Dictionary of Contemporary Englishdiscolorationdis‧col‧o‧ra‧tion /dɪsˌkʌləˈreɪʃən/ noun 1 [uncountable]CCCOLOUR/COLOR the process of becoming discoloured2 [countable]CCCOLOUR/COLOR a place on the surface of something where it has become discoloured
Examples from the Corpus
discoloration• Her rapid pulse, high blood pressure, irregular breathing, and bluish discoloration of the skin all called for life-saving measures.• A slight spicy smell but nothing unusual, and no discoloration of the skin, nails or face.• It also prevents discoloration of icing by the cake if it is to be kept for a while.• The victims suffered a purplish discoloration of the skin.• These accumulate as the snow melts under spring sunshine, and the resulting discoloration hastens the melting.• When she looked back, the fire was a soft discoloration in the fog; a minute later it was gone entirely.• She even knew that the indicator caused the discoloration.• It removes unsightly discoloration, to restore wood to its natural colour.• The lesion has been described as a volcano with central whitish discoloration projecting from an otherwise normal gastric mucosa. 