THESAURUS
atom smashing
alpha decay, atom-chipping, atomic disintegration, atomic reaction, atomization, beta decay, bombardment, breeding, bullet, chain reaction, cleavage, disintegration series, dissociation, exchange reaction, fission, fission reaction, gamma decay, ionization, neutron reaction, nonreversible reaction, nuclear fission, nucleization, photodisintegration, proton gun, proton reaction, reversible reaction, splitting the atom, stimulation, target, thermonuclear reaction