noun
Definition: The death and decay of body tissue, often in a limb, caused by a lack of blood supply, usually after an injury or illness.
Example: The doctor diagnosed him with gangrene after the injury became infected.
transitive verb
Definition: A serious medical condition where body tissue dies due to a lack of blood flow or infection, often leading to decay.
Example: The doctor explained that if left untreated, the injury could lead to gangrene.