Definition of mushroom in English:



  • 1A fungal growth that typically takes the form of a domed cap on a stalk, with gills on the underside of the cap.

    ‘she sautéd the mushrooms in butter’
    as modifier ‘mushroom soup’
    • ‘Plants, for example, started out as green algae, while mushrooms evolved from several lineages of single-celled fungi.’
    • ‘The morel mushrooms are in season and the cherries are just fabulous right now.’
    • ‘Stalls will be laden with fresh, dried, wild and cultivated mushrooms and truffles as well as blackberries, wet walnuts and hazelnuts.’
    • ‘In the soup are prawns, mushrooms, lemon grass, lemon leaf and a little lemon juice, making the soup spicy and sour.’
    • ‘This class contains the mushrooms, shelf fungi, puffballs, and a variety of other macrofungi.’
    • ‘Morel mushrooms are in season in the spring and early summer in the Northwest.’
    • ‘If anything, however, the mushroom soup was even better: rich and dark, with a wonderful, warm flavour and exquisite texture.’
    • ‘The important part isn't usually visible, the mushrooms and toadstools that we can see are merely the way they reproduce.’
    • ‘My favourite wild mushrooms are ceps and chanterelles or girolles.’
    • ‘Morel mushrooms are also wonderful breaded and deep-fat fried.’
    • ‘It is hard to imagine how anyone could better his wild mushroom and white truffle risotto either.’
    • ‘In the UK we have an estimated 12,000 species of fungi, many of which produce large and attractively coloured fruit bodies we all know as mushrooms and toadstools.’
    • ‘Our next foray into the menu was a wild mushroom cream soup with Toscanini truffle oil and garlic flakes.’
    • ‘Wonderfully tender, it's thoughtfully accompanied by barley and roasted mushrooms in truffle oil.’
    • ‘The mushroom, or toadstool, that we see above ground is the fruiting body that produces spores for further reproduction and is only a part of the fungus.’
    • ‘So just because you see a rabbit gorging itself on death-cap mushrooms - Amanita phalloides - don't assume you can do the same.’
    • ‘Cook the onion and garlic in two tablespoons of olive oil until the onion softens, then add the chopped mushroom stalks.’
    • ‘The fungal kingdom is a lot more than mushrooms and toadstools.’
    • ‘Truffles, or subterranean mushrooms, are the world's most expensive vegetable.’
    • ‘He explained that all the work was carried out in climate controlled tunnels and the workers sat down on specialist picking tables where they cut stalks off the mushrooms before putting them into trays.’
    1. 1.1 A thing resembling a mushroom in shape.
      ‘a mushroom of smoke and flames’
      • ‘Secretly, I wished that a mushroom cloud-style explosion could have occurred, resulting in a spot fire.’
      • ‘A boy about my age with pale skin and white mushroom cut hair with freckles covering his face caught me and then set me on the ground.’
      • ‘A mushroom of smoke and flames was billowing up into the clear sky.’
      • ‘Two mushrooms of smoke rose in the sky, about five hundred meters away, and melded together.’
      • ‘I could see black mushrooms of smoke where the shells exploded.’
      • ‘Fifty years on and technology seems to have leapt on by generations as you see the mushroom shaped cloud of the first nuclear test bomb rising high above the New Mexico desert.’
  • 2mass noun A pale pinkish-brown colour.

    as modifier ‘a mushroom leather bag’
    • ‘The decor is trendy and minimalist, with a lot of cream and mushroom shades used, giving it an appearance that is somewhat similar to another nearby wine bar.’
    • ‘Natural colours - pebble, mushroom and lilac - soften the industrial core and contrast well with the metal staircase that links the gallery floors.’
    • ‘Mine was painted a kind of pale mushroom colour, with a burgundy couch.’
    • ‘Soft, pale colors such as creamy Olay white; pale grays with a slight hint of blue, yellow or green; mushroom beiges that are clean and fresh.’


  • 1Increase, spread, or develop rapidly.

    ‘environmental concern mushroomed in the 1960s’
    • ‘The limited pluralism evident in the previous period mushroomed so that the needs of Australia's increasingly multicultural population were both served and further fuelled by radio.’
    • ‘As the number of golf courses mushrooms, concerns have arisen about the development of young golfers who will bring popularity to the game.’
    • ‘The amount of land devoted to development has mushroomed, thanks to the automobile, improved building technology, and greater affluence.’
    • ‘As a result, equity markets throughout the world have mushroomed through direct retail investment and increased investment in mutual and pension fund products.’
    • ‘Housing estate after housing estate has mushroomed up along its sides and Aberdeen's population has dropped correspondingly as people move out of town to these new commuter houses.’
    • ‘The clubs thrived and mushroomed, many with new purpose-built premises extolling their popularity and prosperity.’
    • ‘Developments are mushrooming in unlikely places all over York.’
    • ‘Self-contained campuses including health clubs, clinics, shopping complexes and even schools are mushrooming, and developers are offering resort-like living away from the city.’
    • ‘As commercial development intensifies in the inner city, residential developments tend to mushroom in the outer areas.’
    • ‘However, interest in this general technology has mushroomed recently with the development of laser capture microdissection.’
    • ‘And its holiday charter business has mushroomed, showing an amazing 600 per cent increase on outbound flights to sun destinations.’
    • ‘The global population has mushroomed during the past 150 years as cheap oil has lubricated high levels of food production.’
    • ‘The federal prison population has mushroomed since the 1980s when stiff mandatory sentences were introduced for federal offenses, especially drug crimes.’
    • ‘Soon after, she was invited to sing at more concerts in North Dakota and her career mushroomed.’
    • ‘Other, local, NGOs committed to protecting the environment have mushroomed in recent years, adding to an embryonic debate on sustainable development.’
    • ‘Overall call numbers increased by four per cent, but employment law enquiries mushroomed by more than double that rate to 55,000.’
    • ‘Starting from Florence, these protests rapidly mushroomed over the entire country.’
    • ‘Yet, paradoxically, Shanghai flourished, mushrooming from a modest fishing town into a global metropolis, international financial centre, cultural cauldron and creative dynamo.’
    • ‘The ad hoc coalitions and local groups that have mushroomed in recent months now face the rocky prospect of connecting with or transforming themselves into groups equipped for the longer haul.’
    • ‘She said homelessness had mushroomed during the economic boom, with young people making up larger numbers of those sleeping rough.’
    proliferate, develop rapidly, grow rapidly, burgeon, spread, increase, expand, spring up, shoot up, sprout, burst forth, boom, explode, snowball, rocket, skyrocket
    View synonyms
  • 2Form a shape resembling that of a mushroom.

    ‘the grenade mushroomed into red fire as it hit the hillside’
    1. 2.1 (of a bullet) expand and flatten on reaching its target.
      ‘these are high-performance bullets which mushroom upon impact’
      • ‘When a hollow point bullet hits a bullet proof vest, it mushrooms and will not go through the vest.’
      • ‘The recovered bullet had stayed together and mushroomed to a full inch - the only .45 slug I've ever seen expand that much in living flesh and bone.’
      • ‘At that range, the bullets would barely have had time to mushroom before punching straight through him, dermal weave or not.’
  • 3usually as noun mushroomingGather mushrooms.

    ‘he went mushrooming with his father’


Late Middle English (originally denoting any fungus having a fleshy fruiting body): from Old French mousseron, from late Latin mussirio(n-).