Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A cloud of smoke and debris shaped like a mushroom, especially one created by the detonation of a nuclear bomb.
Century Dictionary and Cyclopedia
- n. A cloud, specifically an ascending cloud, which spreads outward and downward at the top in a form resembling that of a mushroom.
Wiktionary
- n. A large, mushroom-shaped cloud of smoke, flame and debris that rises into the sky as a result of a large explosion, especially after a nuclear explosion.
GNU Webster's 1913
- adj. a cloud of smoke rising and then spreading laterally to take on the shape of a mushroom -- caused by large fires or explosions, esp. nuclear explosions.
WordNet 3.0
- n. a large cloud of rubble and dust shaped like a mushroom and rising into the sky after an explosion (especially of a nuclear bomb)
Examples
“The rage blooms purple in my mind, amid a small mushroom cloud of pulverized grit and the burning smell of the sock that comes between the rock and the chockstone, melting with the friction heat of each strike.”
“It is difficult to put the mushroom cloud back iato the steel casing.”
Lists
These user-created lists contain the word ‘mushroom cloud’.
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Visuals
A list of words which yield surprising, beautiful, amusing, or otherwise noteworthy images here on Wordnik.
photochrom, fufluns, thank you, cool l..., postcard, picture postcard, cricket, physiological ill..., Gakuryū Ishii, ametropia, One Froggy Evening, rhodopsin, Santiago Calatrava and 636 more...
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Against Nature
Inspired by the creepy decadence of Against Nature by Joris-Karl Huysmans.
katzenklavier, pasilalinic-sympa..., the jewel-encrust..., bird's nest soup, ghost net, bottom trawling, coal industry, cat juggling, rattlesnake roundup, fishing, dancing bear, defoliant and 91 more...
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Clouds
We owe our current names for clouds to Luke Howard. Wikipedia tells us that "Howard was not the first to attempt a classification of clouds—Jean-Baptiste Lamarck (1744–1829) had earlier proposed a ...
wane-cloud, stratus, cirrostratus, cirro-stratus, strato-cirrus, altostratus, salmon-cloud, cumulus, altocumulus lenti..., sonder-cloud, rain-cloud, nimbostratus and 205 more...
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SCIE - noun-noun collocations
The collocations below consist of nouns only. Noun-noun collocations are extremely frequent in science (just think of the names of species, chemical compounds or "scientist+invention" type collocat...
discharge lamp, correlation matrix, obidoxime chloride, withdrawal symptom, ipratropium bromide, book lung, zirconium dioxide, octane number, acetyl group, computer accessory, pinto bean, regression equation and 480 more...
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phraseologue ⊃ the one-two punch
short (mostly two-word) collocations, pat phrases, idioms &c. that I like
merry chase, glancing blow, beast mode, feedback loop, false flag, dear god, nothing human, deflector shield, hatchet job, not cricket, bang on, a tinker's damn and 313 more...
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Words of Beauty
the images
iridescent, void, vacuum, rapture, chaos, melancholy, somnambulant, ethereal, somnolescent, caress, intimate, mellifluous and 13 more...
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Things from my memory
nigger baby, mexican jumping bean, puddle jumper, mood ring, pet rock, cat scratch fever, taxman, hippie, vaseline, argyrol, mercurchrome, methiolade and 655 more...
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To Eat, Or Not To Eat?
pie-dog, piebald, pie chart, piece of cake, piecemeal, nut and bolt, wingnut, beebread, toe jam, butterfly, Luxemburger, pi and 22 more...
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Loaded Words Part Deux: Two Words Tha...
See also the list Loaded Words (wordnik.com/lists/loaded-words). Two ordinary words (i.e. not proper nouns--Berlin wall or Utah beach wouldn't fit here) that not only combine to make a third concep...
cotton gin, wagon trail, gold rush, democratic republic, wounded knee, wage slavery, rat race, manifest destiny, eminent domain, pork barrel, gateway drug, talking points and 43 more...
Tweets
Looking for tweets for mushroom cloud.

reesetee Sure, sure, the color's all wrong. Still.... Feb 6, 2008
yarb Plus, they're the right colour to be mushrooms. If they were green, I'd go with broccoli cloud. Feb 6, 2008
reesetee Eh. They still look like broccoli to me. ;-> Feb 6, 2008
treeseed That makes me think of psilocybin when you talk about mushrooms in lieu of the fruit of the Tree of the Knowledge. Feb 6, 2008
kewpid The "fruit" the serpent offered Eve from the Tree of Knowledge has occasionally been represented as a mushroom! Feb 6, 2008
treeseed Kewpid agrees with Weart, quoted in Wikipedia article:
Later in 1946, the Operation Crossroads nuclear bomb tests were described as having a "cauliflower" cloud, but a reporter present also spoke of "the mushroom, now the common symbol of the atomic age." Mushrooms have traditionally been associated both with life and death, food and poison, making them a more powerful symbolic connection than, say, the "cauliflower" cloud. Feb 6, 2008
kewpid Mushrooms and other fungi conjure a more sinister, insidious atmosphere. Broccoli is just well... broccoli. It's rather nice to eat. Feb 6, 2008
reesetee Funny, though. I always thought they looked more like broccoli. Feb 6, 2008
treeseed Merriam-Webster Dictionary:
noun
Date: circa 1909
: a mushroom-shaped cloud; specifically : one caused by the explosion of a nuclear weapon Feb 6, 2008