We found 2 definitions of jack-a-lantern from 2 different sources.
Noun |
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jack-a-lantern - a large poisonous agaric with orange caps and narrow clustered stalks; the gills are luminescent | ||
jack-o-lantern fungus, jack-o-lantern, Omphalotus illudens | ||
agaric a saprophytic fungus of the order Agaricales having an umbrellalike cap with gills on the underside |