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

 

leprosy

 noun
noun
BrE BrE//ˈleprəsi//
 
; NAmE NAmE//ˈleprəsi//
 
[uncountable]
 
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an infectious disease that causes painful white areas on the skin and can destroy nerves and flesh see also leper Word Origin mid 16th cent. (superseding Middle English lepry): from leprous + -y.
See the Oxford Advanced American Dictionary entry: leprosy