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English definition of “mushroom cloud”

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mushroom cloud

noun [C usually singular] uk   us  
a very large cloud of dust that rises into the air in the shape of a large mushroom, especially after a nuclear explosion: The mushroom cloud over Hiroshima is a horrific image of war.
Translations of “mushroom cloud”
in Chinese (Traditional) (尤指核爆炸後形成的)蘑菇雲…
in Chinese (Simplified) (尤指核爆炸后形成的)蘑菇云…
(Definition of mushroom cloud from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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