HyperDic: beta_decay

English > 1 sense of the expression *beta decay*:
NOUN	process	beta decay	radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle

English > *beta decay*: 1 sense > noun 1, process
Meaning	radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle.
Broader	decay, radioactive decay, disintegration	The spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation