Mushroom - Definition

n 1: common name for an edible agaric (contrasting with the
inedible toadstool) [ant: toadstool]
2: mushrooms and related fleshy fungi (including toadstools,
puffballs, morels, coral fungi, etc.)
3: any of various fleshy fungi of the subdivision Basidiomycota
consisting of a cap at the end of a stem arising from an
underground mycelium
4: a large cloud of rubble and dust shaped like a mushroom and
rising into the sky after an explosion (especially of a
nuclear bomb) [syn: mushroom, mushroom cloud, mushroom-
shaped cloud]
5: fleshy body of any of numerous edible fungi
v 1: pick or gather mushrooms; "We went mushrooming in the Fall"
2: grow and spread fast; "The problem mushroomed"