…the period in history usually considered to have begun with the first use of the atomic bomb (1945). It is characterized by nuclear energy as a military, industrial, and sociopolitical factor…
…opposed to the development of nuclear weapons or nuclear power…
…a strong attractive force between nucleons in the atomic nucleus that holds the nucleus together…
…(of a country or region) not having or allowing any nuclear weapons, materials, or power…
…a substance that will sustain a fission chain reaction so that it can be used as a source of nuclear energy…
…radioactive waste material, for example from the use or reprocessing of nuclear fuel…
…the energy released during nuclear fission or fusion, especially when used to generate electricity…
…a couple and their dependent children, regarded as a basic social unit…
…a nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy…
…a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy…
…the most drastic or extreme response possible to a particular situation…
…the physics of atomic nuclei and their interactions, especially in the generation of nuclear energy…
…a bomb or missile that uses nuclear energy to cause an explosion…
…a period of abnormal cold and darkness predicted to follow a nuclear war, caused by a layer of smoke and dust in the atmosphere blocking the sun’s rays…
…the branch of medicine that deals with the use of radioactive substances in research, diagnosis, and treatment…
…a change in the identity or characteristics of an atomic nucleus that results when it is bombarded with an energetic particle, as in fission, fusion, or radioactive decay…
…a point in a conflict at which nuclear weapons are or would be brought into use…
…the supposed protection gained from an alliance with a country possessing nuclear weapons…
…the absorption of electromagnetic radiation by a nucleus having a magnetic moment when in an external magnetic field, used mainly as an analytical technique and in diagnostic body imaging…
…a British organization which campaigns for the abolition of nuclear weapons worldwide and calls for unilateral disarmament…
…relating to or using nuclear reactions that occur only at very high temperatures…
…an apparatus or structure in which fissile material can be made to undergo a controlled, self-sustaining nuclear reaction with the consequent release of energy…
