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

 

pleurisy

 noun
noun
BrE BrE//ˈplʊərəsi//
 
; NAmE NAmE//ˈplʊrəsi//
 
[uncountable]
 
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a serious illness that affects the inner covering of the chest and lungs, causing severe pain in the chest or sides Word Origin late Middle English: from Old French pleurisie, from late Latin pleurisis, alteration of earlier Latin pleuritis, from Greek pleura ‘side of the body, rib’.
See the Oxford Advanced American Dictionary entry: pleurisy