radioactivity

English Thesaurus

1. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay (noun.process)

hypernym	:	emission,
definition	:	the release of electrons from parent atoms (noun.process)

hyponym	:	corpuscular radiation, particulate radiation,
definition	:	a stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons) (noun.phenomenon)

derivation	:	radioactive,
definition	:	exhibiting or caused by radioactivity (adj.all)

derivation	:	radioactive,
definition	:	exhibiting or caused by radioactivity (adj.all)