necrosis

/nəˈkroʊsɪs/
noun
  1. The death of cells or tissue in a living body, often due to injury, infection, or lack of blood flow.
    • Severe frostbite can lead to tissue necrosis if not treated quickly.
    • The doctor diagnosed necrosis in the patient's foot because of poor circulation.
    • The biopsy showed areas of necrosis in the liver caused by the infection.