[noo-klee-er, nyoo- or, by metathesis, -kyuh-ler] /ˈnu kli ər, ˈnyu- or, by metathesis, -kyə lər/
pertaining to or involving atomic weapons:
operated or powered by atomic energy:
a nuclear submarine.
(of a nation or group of nations) having atomic weapons.
of, relating to, or forming a nucleus.
of, relating to, or like the :
switching to nuclear as a power source.
of, concerned with, or involving the nucleus of an atom: nuclear fission
(biology) of, relating to, or contained within the nucleus of a cell: a nuclear membrane
of, relating to, forming, or resembling any other kind of nucleus
of, concerned with, or operated by energy from fission or fusion of atomic nuclei: a nuclear weapon
involving, concerned with, or possessing nuclear weapons: nuclear war, a nuclear strike
1846, “of or like the nucleus of a cell,” from nucleus + -ar, probably by influence of French nucléaire. Use in atomic physics is from 1914; of weapons, from 1945. Hence nuclear physics (1933), nuclear energy (1941), nuclear war (1954). Nuclear winter coined by Richard Turco, but first attested in article by Carl Sagan in “Parade” magazine, Oct. 30, 1983. General sense of “central” is from 1912. Nuclear family, originally a sociologists’ term, is first attested 1949 in “Social Structure,” by American anthropologist G.P. Murdock (1897-1985). Alternative adjective nucleal is recorded from 1840.
nuclear nu·cle·ar (nōō’klē-ər, nyōō’-)
- Nuclear bomb
noun 1. a bomb whose force is due to uncontrolled nuclear fusion or nuclear fission
- Nuclear cataract
nuclear cataract n. A cataract involving, only the inner dense portion of the lens.
- Nuclear chemistry
noun 1. the branch of chemistry concerned with nuclear reactions
noun, Physics. 1. a photographic emulsion in the form of a thick block, used to record the tracks of elementary particles.