Jack-a-lantern

1 definition found

From WordNet (r) 2.0 [wn]:

  jack-a-lantern
       n : a large poisonous agaric with orange caps and narrow
           clustered stalks; the gills are luminescent [syn: {jack-o-lantern
           fungus}, {jack-o-lantern}, {Omphalotus illudens}]