necrosis
noun /neˈkrəʊsɪs/
/neˈkrəʊsɪs/
[uncountable] (medical)- the death of most or all of the cells in an organ or tissue caused by injury, disease or a loss of blood supplyWord Originmid 17th cent.: modern Latin, from Greek nekrōsis (from necro- nekros ‘corpse’ and -osis).