Definition of nuclear adjective from the Oxford Advanced Learner's Dictionary

        

    nuclear

     adjective
    adjective
    BrE BrE//ˈnjuːkliə(r)//
     
    ; NAmE NAmE//ˈnuːkliər//
     
    [usually before noun] The power industry, Energy and physical forces, Conflict
     
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  1. 1  using, producing or resulting from nuclear energy a nuclear power station the nuclear industry nuclear-powered submarines Wordfinderenergy, fossil fuel, fracking, fuel, hydroelectric, nuclear, oil, power station, solar, wind farm See related entries: The power industry, Energy and physical forces
  2. 2  connected with weapons that use nuclear energy a nuclear weapon/bomb/missile a nuclear explosion/attack/war the country’s nuclear capability (= the fact that it has nuclear weapons) nuclear capacity (= the number of nuclear weapons a country has) See related entries: Energy and physical forces, Conflict
  3. 3(physics) of the nucleus (= central part) of an atom nuclear particles a nuclear reaction Wordfinderamplitude, atom, energy, fission, force, frequency, gravity, molecule, nuclear, physics See related entries: Energy and physical forces
  4. Word Origin mid 19th cent.: from nucleus + -ar.
See the Oxford Advanced American Dictionary entry: nuclear