nuclear winter - definition in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online (US)

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English definition of “nuclear winter”

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nuclear winter

noun [C usually singular] uk   us   specialized
a period that scientists believe would follow a large nuclear explosion, when there would be very little light or heat and nothing would grow in the world
(Definition of nuclear winter from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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