jack-o'-lantern

• ⇰ A large orange-colored luminescent mushroom, <spn>Clitocybe illudens</spn>, also classified as <spn>Omphalotus olearius</spn>. It is poisonous and is sometimes found on hardwood tree stumps.
• ⇰ a pale light sometimes seen at night over marshy ground; an ignis fatuus>; a will-o'-the-wisp
• ⇰ A lantern carved from a hollowed-out pumpkin, with holes cut in the rind and so shaped that when it is illuminated by a candle inside, the features of a human face, cat's face, etc. appear in a glowing yellow color. It is used mostly as a decoration at