angel of death

Short definition from Wiktionary

Noun

1. 1
   A personification of death in fiction, art, mythology, or religion: An angel which attends to death, collecting souls at death, ending life at the appointed time of death.
2. 2
   An angel in Abrahamic scripture or eschatology that attends to death: Azrael.
3. 3
   An angel in Abrahamic scripture or eschatology that attends to death: Death, one of the Four Horsemen of the Apocalypse.
4. 4
   A personification of death in fiction, art, mythology, or religion: The Grim Reaper.
5. 5
   A personification of death in fiction, art, mythology, or religion: A shinigami.
6. 6
   A type of serial killer who is employed as a caregiver and kills people under their care.
7. 7
   Synonym of destroying angel (“a type of mushroom”).