- pertaining to or involving atomic weapons: nuclear war.
- 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 nuclear family: nuclear bonds.
- nuclear energy: switching to nuclear as a power source.
Origin of nuclear
- of, concerned with, or involving the nucleus of an atomnuclear fission
- biology of, relating to, or contained within the nucleus of a cella 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 nucleia nuclear weapon
- involving, concerned with, or possessing nuclear weaponsnuclear 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.
- Located or occurring between nuclei.
- Located between nerve cell groups in the brain or retina.
- Of or forming a nucleus.
- Of or relating to atomic nuclei.
- Relating to or forming a cell nucleus.
- Relating to atomic nuclei.
- Using energy derived from the nuclei of atoms through fission or fusion reactions.