excoriation

noun
ex·​co·​ri·​a·​tion | \(ˌ)ek-ˌskōr-ē-ˈā-shən, -ˌskȯr- \

Medical Definition of excoriation 

1 : the act of abrading or wearing off the skin chafing and excoriation of the skin

2 : a raw irritated lesion (as of the skin or a mucosal surface)

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