1. Religious rites in honor of the dead.
2. Putting to death.
3. The act of feigning death.
4. The sum of the morphological changes indicative of cell death and caused by the progressive degradative action of enzymes which may affect groups of cells or part of a structure or a bodily organ.
5. In medicine, gangrene or death of tissue, usually in considerable mass and generally associated with the loss of vascular (nutritive) supply and followed by bacterial invasion and putrefaction.