Search Result for "radioactive decay":
Wordnet 3.0

NOUN (1)

1. the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation;
[syn: decay, radioactive decay, disintegration]



WordNet (r) 3.0 (2006):

radioactive decay
    n 1: the spontaneous disintegration of a radioactive substance
         along with the emission of ionizing radiation [syn:
         decay, radioactive decay, disintegration]