mushroom

noun
mush·​room | \ ˈməsh-ˌrüm How to pronounce mushroom (audio) , -ˌru̇m; chiefly Northern and Midland US -ˌrün; dialectal ˈmə-shə-ˌrüm, -ˌru̇m, -ˌrün\

Definition of mushroom

 (Entry 1 of 2)

1a : 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 : upstart
3 : something resembling a mushroom

mushroom

verb
mushroomed; mushrooming; mushrooms

Definition of mushroom (Entry 2 of 2)

intransitive verb

1a : 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

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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.
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Recent Examples on the Web: Noun

Kanchha recalls, noting many Sherpas would forage in the woods for mushrooms and wild plants to eat. Freddie Wilkinson, National Geographic, "He’s the last surviving member of the first expedition to summit Everest," 17 June 2019 Others include spaghetti with mushrooms and bacon, and the spicy gulf shrimp spaghetti. Nancy Ngo, Twin Cities, "You’re taking WHAT off the menu?! Chefs reveal dishes customers won’t let them stop making," 13 June 2019 In between there’s caramelized onions and goat cheese toasts, a panzanella salad with morel mushrooms and ramps. Susan Selasky, Detroit Free Press, "She used to work at Zingerman's. Now she's back to cook from her new book," 11 June 2019 Anchorage’s food-truck scene is burgeoning and new ones are popping up with the season like wild mushrooms. Anchorage Daily News, "Add these new(ish) Anchorage food trucks to your rotation this summer," 6 June 2019 The outlet reported that the vote directs law enforcement officials to stop investigating, arresting and prosecuting adults who use or possess drugs sourced from mushrooms and other plants. Helen Murphy, PEOPLE.com, "Oakland, California, Becomes Second U.S. City to Decriminalize 'Magic Mushrooms'," 5 June 2019 TubShroom looks like a little rubber mushroom and prevents clogged drains by catching hair and stopping it from going down the drain in the first place. Emma Seymour, Good Housekeeping, "The TubShroom Is the Best Thing That Ever Happened to My Bathroom," 7 May 2019 Luby's closes 10 restaurants in the second quarter, boosting profits despite sales declines H-E-B started offering family-sized Chicken Tetrazzini, a spaghetti casserole with sautéed mushrooms, pimientos, chicken and American cheese, last week. Katherine Feser, Houston Chronicle, "Luby's expands partnership with H-E-B with additional cafeteria dishes," 5 June 2019 Transfer to a bowl and repeat with remaining mushrooms. Woman's Day Kitchen, Woman's Day, "Ravioli with Creamy Mushrooms and Asparagus," 29 Apr. 2019

Recent Examples on the Web: Verb

Since its filing, the case has pingponged among administrative, district and appeals courts, and the files have mushroomed to more than 1,000 pages. Andrea Gallo, ProPublica, "Why the “Most Egregious” Ethics Case in Louisiana Remains Open Nine Years Later," 16 May 2019 The Final Four has mushroomed even since the last time the Alamodome hosted in 2008. Rachel Bachman And Jared Diamond, WSJ, "Remember the Alamodome? The Final Four Might Not Be Back," 2 Apr. 2018 Augmentation teams are typically deployed before a situation has mushroomed into a crisis. Dan Lamothe, Washington Post, "Marines reinforce U.S. compounds as violence flares after Trump moves embassy to Jerusalem," 14 May 2018 The office also is expected to hire more staff to deal with mushrooming demand for records, the person said. Rebecca Ballhaus, WSJ, "Trump Likely to Face Aggressive Oversight From House Democrats," 7 Nov. 2018 Explosion of the ‘Cons As San Diego’s Comic-Con has steadily mushroomed in size and popularity over the years so, too, has the sheer number of comics-centric conventions around the U.S. and the world. Lori Weisberg, sandiegouniontribune.com, "No Marvel or HBO? No big deal, San Diego Comic-Con observers say," 25 June 2018 Once a fringe home accoutrement favored by eco-conscious consumers, solar does appear poised to mushroom as costs come down and homeowners welcome reduced utility bills. Marco Della Cava, USA TODAY, "Burning for Tesla Powerwall? Get ready to wait as Musk's solar vision takes a backseat to Model 3," 13 July 2018 Image As educational debt continues to mushroom, younger workers often have to choose between paying off their student loans and saving for retirement. Ann Carrns, New York Times, "To Draw Workers, Employers Offer to Help With Student Loans," 26 June 2018 The Air Force issued an apology Thursday for a tweet that linked a bloody Taliban attack in Afghanistan with a viral Internet meme that mushroomed in the past few days under the hashtag #YannyLaurel. Dan Lamothe, Washington Post, "Air Force says it’s sorry about linking the viral Yanny vs. Laurel debate and a Taliban attack," 17 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mushroom.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of mushroom

Noun

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

Verb

1893, in the meaning defined at sense 1a

History and Etymology for mushroom

Noun

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

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Statistics for mushroom

Last Updated

23 Jun 2019

Look-up Popularity

Time Traveler for mushroom

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

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More Definitions for mushroom

mushroom

noun

English Language Learners Definition of mushroom

 (Entry 1 of 2)

: a fungus that is shaped like an umbrella especially : one that can be eaten

mushroom

verb

English Language Learners Definition of mushroom (Entry 2 of 2)

: to increase or develop very quickly
: to collect wild mushrooms

mushroom

noun
mush·​room | \ ˈməsh-ˌrüm How to pronounce mushroom (audio) , -ˌru̇m\

Kids Definition of mushroom

 (Entry 1 of 2)

: a part of a fungus that bears spores, grows above ground, and suggests an umbrella in shape

mushroom

verb
mushroomed; mushrooming

Kids Definition of mushroom (Entry 2 of 2)

: to appear or develop suddenly or increase rapidly The town's population has mushroomed.

mushroom

noun
mush·​room | \ ˈməsh-ˌrüm How to pronounce mushroom (audio) , -ˌru̇m How to pronounce mushroom (audio) \

Medical Definition of mushroom

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

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