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

 

peritonitis

 noun
noun
BrE BrE//ˌperɪtəˈnaɪtɪs//
 
; NAmE NAmE//ˌperɪtəˈnaɪtɪs//
 
[uncountable](medical)
 
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a serious condition in which the inside wall of the body becomes swollen and infected
See the Oxford Advanced American Dictionary entry: peritonitis