mushroom

1 of 2

noun

mush·​room ˈməsh-ˌrüm How to pronounce mushroom (audio)
-ˌru̇m;
 chiefly Northern and Midland US  -ˌrün;
 dialectal  ˈmə-shə-ˌrüm,
-ˌru̇m,
-ˌrün
1
a
: an enlarged complex aboveground fleshy fruiting body of a fungus (such as a basidiomycete) that consists typically of a stem bearing a pileus
especially : one that is edible
b
: fungus
2
3
: something resembling a mushroom

mushroom

2 of 2

verb

mushroomed; mushrooming; mushrooms

intransitive verb

1
a
: to well up and spread out laterally from a central source
b
: to become enlarged or extended : grow
2
: to collect wild mushrooms
3
: to spring up suddenly or multiply rapidly

Examples of mushroom in a Sentence

Noun cut up some mushrooms for the salad Verb Interest in local history is suddenly mushrooming. Her hobby mushroomed into a thriving business. He goes mushrooming in the spring every year.
Recent Examples on the Web
Noun
On the menu: Seasonal produce from the forests around Dilijan, such as the famous wild mushrooms, cooked in traditional clay pots and cast-iron pans. Vogue, 15 Aug. 2024 Formulated with an array of soothing botanical extracts, such as heartleaf, reishi mushroom, and ginkgo biloba, this silky serum straight from Japan is chock full of antioxidants, which help fight fine lines and wrinkles and improve skin rejuvenation, notes Dr. Liu. Devon Abelman, Allure, 12 Aug. 2024
Verb
When Shafik ordered the first encampment cleared, a small-scale protest mushroomed on the campus and went nationwide. New York Daily News Editorial Board, New York Daily News, 10 Aug. 2024 The reform aimed to slash juvenile crime, but crime mushroomed instead. Armstrong Williams, Baltimore Sun, 3 Aug. 2024 See all Example Sentences for mushroom 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'mushroom.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Noun

Middle English musheron, from Anglo-French musherum, musseron, from Late Latin mussirion-, mussirio

First Known Use

Noun

15th century, in the meaning defined at sense 1a

Verb

1893, in the meaning defined at sense 1a

Time Traveler
The first known use of mushroom was in the 15th century

Dictionary Entries Near mushroom

Cite this Entry

“Mushroom.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mushroom. Accessed 19 Aug. 2024.

Kids Definition

mushroom

1 of 2 noun
mush·​room ˈməsh-ˌrüm How to pronounce mushroom (audio)
-ˌru̇m
1
: a fleshy part of a fungus that bears spores, grows above ground, and consists usually of a stem bearing a flattened cap
especially : one that is edible
2

mushroom

2 of 2 verb
: to appear or develop suddenly or increase rapidly
the population mushroomed

Medical Definition

mushroom

noun
1
: an enlarged complex fleshy fruiting body of a fungus (as most basidiomycetes) that arises from an underground mycelium and consists typically of a stem bearing a spore-bearing structure
especially : one that is edible compare toadstool
2

More from Merriam-Webster on mushroom

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