Jisho

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Noun
1. mushroom cloud (from nuclear explosion, etc.)
Wikipedia definition
2. Mushroom cloudA mushroom cloud is a distinctive pyrocumulus mushroom-shaped cloud of condensed water vapor or debris resulting from a very large explosion. They are most commonly associated with nuclear explosions, but any sufficiently large blast will produce the same sort of effect. They can be caused by powerful conventional weapons like the GBU-43/B Massive Ordnance Air Blast bomb. Volcanic eruptions and impact events can produce natural mushroom clouds.
Read “Mushroom cloud” on English Wikipedia
Read “キノコ雲” on Japanese Wikipedia
Read “Mushroom cloud” on DBpedia
Other forms
きのこ雲 【きのこぐも】茸雲 【きのこぐも】

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