jack-o'-lantern

noun
jack-o'-lan*tern \ ˈja-kə-ˌlan-tərn \
1667{ds||3||}
  • a lantern made of a pumpkin usually cut to resemble a human face
  • a large orangish gill fungus (Omphalotus olearius synonym Clitocybe illudens) that is poisonous and luminescent
  • ignis fatuus
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