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

 

exacerbation

 noun
noun
BrE BrE//ɪɡˌzæsəˈbeɪʃn//
 
; NAmE NAmE//ɪɡˌzæsəˈbeɪʃn//
 
[uncountable, countable](formal)
 
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the act of making something worse, especially a disease or problem the exacerbation of religious and racial tensions Over the next two years, Gary experienced numerous acute exacerbations of his illness.