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English definition of “nuclear”

nuclear

adjective [not gradable] (OF ATOMS)   /ˈnu·kli·ər/
physics of or relating to a process by which the nucleus (= central part ) of an atom is divided or joined to another nucleus , resulting in the release of energy relating to weapons , or the use of weapons , in which an atom is divided or joined to another nucleus to release energy in a destructive way: nuclear war nuclear disarmament (= giving up or removing a country’s nuclear weapons )
(Definition of nuclear adjective (OF ATOMS) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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