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

 

necrosis

 noun
noun
BrE BrE//neˈkrəʊsɪs//
 
; NAmE NAmE//neˈkroʊsɪs//
 
[uncountable](medical)
 
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the death of most or all of the cells in an organ or tissue caused by injury, disease, or a loss of blood supply Word Origin mid 17th cent.: modern Latin, from Greek nekrōsis (from necro- nekros ‘corpse’ and -osis).
See the Oxford Advanced American Dictionary entry: necrosis