LEARNit Dictionary
incrustation
noun
/ˌɪnkrʌˈsteɪʃn/
UK
/ˌɪnkrʌˈsteɪʃn/
US
1
the process of forming a hard outer layer over something; the layer that is formed
پوسته بندی, روکش سخت, پوشش سخت