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English definition of “nuclear”

nuclear

adjective uk   /ˈnjuː.klɪər/ us    /ˈnuː.kliː.ɚ/

nuclear adjective (POWER)

B2 being or using the power produced when the nucleus of an atom is divided or joined to another nucleus: nuclear energy/power a nuclear power plant the nuclear industry B2 relating to weapons, or the use of weapons, which use the power produced when the nucleus of an atom is divided or joined to another nucleus: a nuclear war/attack nuclear disarmament How many nations have a nuclear capability (= have nuclear weapons)?

nuclear adjective (PHYSICS)

specialized physics relating to the nucleus of an atom: nuclear fission/fusion/physics
(Definition of nuclear from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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