1 adj Nuclear means relating to the nuclei of atoms, or to the energy released when these nuclei are split or combined.
...a nuclear power station., ...nuclear energy., ...nuclear physics.
2 adj Nuclear means relating to weapons that explode by using the energy released when the nuclei of atoms are split or combined. ADJ n
(=atomic) They rejected a demand for the removal of all nuclear weapons from UK soil., ...nuclear testing.
in AM, also use nonnuclear
Non-nuclear means not using or involving nuclear weapons or nuclear power. adj
The agreement is the first postwar treaty to reduce non-nuclear weapons in Europe.
nuclear capability ( nuclear capabilities plural ) If a country has nuclear capability, it is able to produce nuclear power and usually nuclear weapons. n-var
nuclear family ( nuclear families plural ) A nuclear family is a family unit that consists of father, mother, and children. n-count
A nuclear-free place is a place where nuclear energy or nuclear weapons are forbidden. adj usu ADJ n
Strathclyde council has declared itself a nuclear-free zone.
nuclear fuel ( nuclear fuels plural ) Nuclear fuel is fuel that provides nuclear energy, for example in power stations. n-var
nuclear reactor ( nuclear reactors plural ) A nuclear reactor is a machine which is used to produce nuclear energy or the place where this machine and other related machinery and equipment is kept. n-count
They shut down the nuclear reactor for safety reasons.
Nuclear winter refers to the possible effects on the environment of a war in which large numbers of nuclear weapons are used. It is thought that there would be very low temperatures and very little light during a nuclear winter. n-uncount also a N