mushroom mushroom /ˈmʌʃruːm/

noun

1. Fleshy body of any of numerous edible fungi  ( mushroom )
   fleshy body of any of numerous edible fungi
    I added some freshly picked mushrooms to my salad.
   I added some freshly picked mushrooms to my salad.
   
   
2. A large cloud of rubble and dust shaped like a mushroom and rising into the sky after an explosion (especially of a nuclear bomb)  ( mushroom , mushroom cloud , mushroom-shaped cloud )
   a large cloud of rubble and dust shaped like a mushroom and rising into the sky after an explosion (especially of a nuclear bomb)
   
   
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  ( mushroom )
   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. Mushrooms and related fleshy fungi (including toadstools, puffballs, morels, coral fungi, etc.)  ( mushroom )
   mushrooms and related fleshy fungi (including toadstools, puffballs, morels, coral fungi, etc.)
    I sautéed mushrooms and added them to my omelette for breakfast
   I sautéed mushrooms and added them to my omelette for breakfast
   
   
5. Common name for an edible agaric (contrasting with the inedible toadstool)  ( mushroom )
   common name for an edible agaric (contrasting with the inedible toadstool)
    She added fresh mushrooms to the pizza, enhancing its earthy flavors.
   She added fresh mushrooms to the pizza, enhancing its earthy flavors.
   
   

verb

1. Grow and spread fast  ( mushroom )
   grow and spread fast
    The problem mushroomed
   The problem mushroomed
   
2. Pick or gather mushrooms  ( mushroom )
   pick or gather mushrooms
    We went mushrooming in the Fall
   We went mushrooming in the Fall