mushroom cloud

mushroom clouddetonation of nuclear bomb Baker during Operation Crossroads at Bikini AtollJuly 25, 1946

mushroom cloud

n. A cloud of smoke and debris shaped like a mushroom, especially one created by the detonation of a nuclear bomb.

mushroom cloud

n (Nuclear Physics) the large mushroom-shaped cloud of dust, debris, etc produced by a nuclear explosion

mush•room

(ˈmʌʃ rum, -rʊm)
n. 1. any of various fleshy fungi, including the toadstools, puffballs, coral fungi, and morels. 2. meadow mushroom. 3. anything of similar shape or correspondingly rapid growth. 4. a large, mushroom-shaped cloud of smoke or rubble, formed in the atmosphere as a result of an explosion, esp. a nuclear explosion. v.i. 5. to spread, grow, or develop quickly. 6. to gather mushrooms. 7. to assume the shape of a mushroom. [1560–65; alter. (by folk etym.) of late Middle English muscheron, musseroun < Middle French mousseron « Late Latin mussiriōn-, s. of mussiriō]

Thesaurus

Noun

1.

mushroom cloud - a large cloud of rubble and dust shaped like a mushroom and rising into the sky after an explosion (especially of a nuclear bomb)mushroom-shaped cloud, mushroomcloud - any collection of particles (e.g., smoke or dust) or gases that is visible

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