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Adjective nuclear has 4 senses
  1. nuclear, atomic - (weapons) deriving destructive energy from the release of atomic energy; "nuclear war"; "nuclear weapons"; "atomic bombs"
    Antonym: conventional
  2. nuclear - of or relating to or constituting the nucleus of an atom; "nuclear physics"; "nuclear fission"; "nuclear forces"
  3. nuclear - of or relating to or constituting the nucleus of a cell; "nuclear membrane"; "nuclear division"
  4. nuclear - constituting or like a nucleus; "annexation of the suburban fringe by the nuclear metropolis"; "the nuclear core of the congregation"
    Antonym:     peripheral (indirect, via central)
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