[jak-uh-lan-tern] 
| 1. | a hollowed pumpkin with openings cut to represent human eyes, nose, and mouth and in which a candle or other light may be placed, traditionally made for display at Halloween. |
| 2. | a commercially made lantern resembling this. |
| 3. | any phenomenon of light, as a corona discharge or an ignis fatuus. |
| 4. | a poisonous luminescent orange fungus, Omphalotus olearius, often found in clusters at the base of hardwood tree stumps. |
| jack-o-lantern | |
noun | |
| a large poisonous agaric with orange caps and narrow clustered stalks; the gills are luminescent [syn: jack-o-lantern fungus] |