'Nuclear' definitions:

Definition of 'nuclear'

From: WordNet
adjective
(weapons) deriving destructive energy from the release of atomic energy; "nuclear war"; "nuclear weapons"; "atomic bombs" [syn: nuclear, atomic] [ant: conventional]
adjective
Of or relating to or constituting the nucleus of an atom; "nuclear physics"; "nuclear fission"; "nuclear forces"
adjective
Of or relating to or constituting the nucleus of a cell; "nuclear membrane"; "nuclear division"
adjective
Constituting or like a nucleus; "annexation of the suburban fringe by the nuclear metropolis"; "the nuclear core of the congregation"

Definition of 'Nuclear'

From: GCIDE
  • Nucleal \Nu"cle*al\, Nuclear \Nu"cle*ar\, a.
  • 1. Of or pertaining to a nucleus; as, the nuclear spindle (see Illust. of Karyokinesis) or the nuclear fibrils of a cell; the nuclear part of a comet, etc. [1913 Webster]

Definition of 'Nuclear'

From: GCIDE
  • Nuclear \Nu"cle*ar\, a.
  • 1. of, pertaining to, or using nuclear weapons; a nuclear exchange, i.e. a reciprocal bombardment by nuclear weapons.. [PJC]
  • 2. Of, pertaining to, or powered by atomic energy; same as nuclear-powered; as, a nuclear submarine; a nuclear power plant. [PJC]
  • 3. Of or pertaining to nations possessing nuclear weapons; as, the nuclear club. [PJC]