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

Besides the traditional salads, stuffings, and soups, chestnuts pair well with pretty much all of your favorite fall and winter flavors, including apples, cabbage, Brussels sprouts, turkey, pork, sage, thyme, and mushroom. Caroline Picard, Good Housekeeping, "4 Surprising Health Benefits of Chestnuts," 13 Dec. 2018 Police found crystal meth and mushrooms in his hotel room. Cheryl Wischhover, Vox, "What the latest report on skin care company Deciem reveals about its troubled founder," 3 Dec. 2018 Discard thyme and bay leaves from stew, then fold in garlic and mushrooms and sprinkle with parsley. Woman's Day Kitchen, Woman's Day, "Easy Beef Bourguignon," 30 Nov. 2018 This classic Vietnamese sandwich is slathered with mayonnaise and crowned with pickled vegetables offered two ways — with pork or tofu and mushrooms. Lindsey Mcclave, The Courier-Journal, "Ngon Appetit keeps it simple with 3 items — soup, sandwiches, crepes," 11 July 2018 The reading recommendation is Boys Adrift by Leonard Sax, and the eating recommendation is pepperoni and mushroom at Caddyshack. Sam Mellinger, kansascity, "Mellinger Minutes: Whit not an All-Star (?), Jeff Long and KU, Chiefs fears, Odom's crossroads," 10 July 2018 Ursula said a big seller and specialty is the Bowes Bonanza, a Chicago style pizza with Italian sausage, green pepper, onion and mushroom. Sheryl Devore, Lake County News-Sun, "Guide to outdoor dining in Chicago suburbs: Emil's Tavern on Center in Grayslake," 9 July 2018 There are about 20 types of jook with add-ons, including crabmeat or oyster and mushroom. Kellie Hwang, azcentral, "It's National Fried Chicken Day! Phoenix restaurants for best fried chicken," 6 July 2018 Buckwheat soba noodles, smoky, seasoned beef, house made kimchi and a six-minute egg all swim in a rich savory broth of bacon and mushrooms. Anchorage Daily News, "A revamped menu of comfort food at Rustic Goat restaurant," 5 July 2018

Recent Examples on the Web: Verb

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 Laurie Anderson and Laura Ortman played bright, arcing lines on their violins as the electronic musician Jad Atoui made slow, mushrooming palls underneath. Giovanni Russonello, New York Times, "John Zorn’s Club the Stone Begins a New Life on the Other Side of Town," 27 Feb. 2018 Others simply continued golfing as an apocalyptic cloud mushroomed behind them, The Washington Post’s Amy B Wang wrote. Kristine Phillips, Washington Post, "Four residents airlifted, dozens more structures destroyed by lava on Hawaii’s Big Island," 19 May 2018 These off-balance sheet entities mushroomed after the financial crisis, when local governments—which back then were still not allowed to issue their own debt—were called upon to invest billions to stimulate the economy. Nathaniel Taplin, WSJ, "China Suddenly Has Trouble Building Things," 27 Aug. 2018 The reasons aren’t a fear of more traffic or mushrooming housing prices, but socio-cultural. Jon Talton, The Seattle Times, "In America’s ‘geography of despair,’ how to help the left-behind places?," 21 Nov. 2018 Various attacks based on ethnic rivalries are mushrooming across the country and are his biggest challenges to date. Elias Meseret, Fox News, "Hundreds arrested in Ethiopia after violence around capital," 24 Sep. 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

17 Mar 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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