#death  the permanent end of all life functions in an organism or part of an organism; "the animal died a painful death"
  supertype:  organic_phenomenon__organicphenomenon  a natural phenomenon involving living plants and animals
  equal:  die (pm)
  subtype:  necrobiosis__necrobiosi__cell_death  (physiology) the normal degeneration and death of living cells (as in various epithelial cells)
     subtype:  apoptosis__apoptosi__programmed_cell_death__caspase-mediated_cell_death  a type of cell death in which the cell uses specialized cellular machinery to kill itself; a cell suicide mechanism that enables metazoans to control cell number and eliminate cells that threaten the animal's survival
  subtype:  necrosis__mortification__gangrene__sphacelus  the localized death of living cells (as from infection or the interruption of blood supply)
     subtype:  myonecrosis  localized death of muscle cell fibers
  subtype:  brain_death__cerebral_death  death when respiration and other reflexes are absent; consciousness is gone; organs can be removed for transplantation before the heartbeat stops

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