1

mushroom

play
noun mush·room \ˈməsh-ˌrüm, -ˌru̇m; chiefly Northern and Midland US -ˌrün; dialectal ˈmə-shə-ˌrüm, -ˌru̇m, -ˌrün\

Definition of mushroom

  1. 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 edibleb :  fungus

  2. 2 :  upstart

  3. 3 :  something resembling a mushroom

Examples of mushroom in a Sentence

  1. cut up some mushrooms for the salad

Origin and Etymology of mushroom

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


2

mushroom

verb mush·room

Definition of mushroom

  1. intransitive verb
  2. 1a :  to well up and spread out laterally from a central sourceb :  to become enlarged or extended :  grow

  3. 2 :  to collect wild mushrooms

  4. 3 :  to spring up suddenly or multiply rapidly

Examples of mushroom in a Sentence

  1. Interest in local history is suddenly mushrooming.

  2. Her hobby mushroomed into a thriving business.

  3. He goes mushrooming in the spring every year.

First Known Use of mushroom

1893



MUSHROOM Defined for English Language Learners

mushroom

play
noun

Definition of mushroom for English Language Learners

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

mushroom

verb

Definition of mushroom for English Language Learners

  • : to increase or develop very quickly

  • : to collect wild mushrooms


MUSHROOM Defined for Kids

1

mushroom

play
noun mush·room \ˈməsh-ˌrüm, -ˌru̇m\

Definition of mushroom for Students

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


2

mushroom

play
verb mush·room

Definition of mushroom for Students

mushroomed

;

mushrooming

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


Medical Dictionary

mushroom

play play
noun mush·room \ˈməsh-ˌrüm, -ˌru̇m\

Medical Definition of mushroom

  1. 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. 2:  fungus 1



Seen and Heard

What made you want to look up mushroom? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

sad or melancholy

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • istock-refers-to-this-as-a-tumble-of-strawberries-which-sounded-pretty-nice-to-us
  • Which is a synonym of garner?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!