Definition of discoloration noun from the Oxford Advanced Learner's Dictionary



    (British English also discolouration) noun
    BrE BrE//ˌdɪsˌkʌləˈreɪʃn//
    ; NAmE NAmE//ˌdɪsˌkʌləˈreɪʃn//
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  1. 1[uncountable] the process of becoming discoloured discoloration caused by the sun
  2. 2[countable] a place where something has become discoloured He began to notice a few small brown discolorations on his skin and made an appointment to see the doctor.
See the Oxford Advanced American Dictionary entry: discoloration