noun
mushroom
MUHSH-room
noun
1
The fleshy, umbrella-shaped fruiting body of certain fungi, often eaten as food.
"She fried the mushrooms in butter and garlic before adding them to the pasta."
verb
1
To grow or increase very quickly in size, number, or scale.
"Complaints about the new policy mushroomed within hours of the announcement."
"The small startup mushroomed into a company with offices on three continents."
adj
1
Shaped like a mushroom, with a wide cap on a narrower stem.
"The explosion sent up a dark mushroom cloud over the horizon."
How to Use Mushroom
Learner’s notesIn plain EnglishThe fungus you eat, the shape it makes, or (as a verb) growing rapidly out of nowhere.
Common pairings
mushroom cloud
mushroom into something
wild mushrooms
Word Forms
mushroomed past tense, mushrooms singular
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Etymology
From Middle English muscheron, borrowed via Old French from a word related to moss — because these fungi were first noticed growing among moss.