discoloration

/ˌdɪsˌkʌləˈreɪʃn/

dis·col·or·ation (BrE also dis·col·our·ation)

BrE /ˌdɪsˌkʌləˈreɪʃn/

NAmE /ˌdɪsˌkʌləˈreɪʃn/

[U]

the process of becoming discoloured

discoloration caused by the sun

[C]

a place where sth has become discoloured