Meaning of RADIOACTIVE DECAY

Pronunciation:			`reydeeow'aktiv di'key
WordNet Dictionary
	Definition:		[n]  the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
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	Synonyms:		decay, disintegration
	See Also:		nuclear reaction
Glossary
	Definition:		the regular process by which radioactive isotopes break down into their decay products with a half-life which is specific to the isotope in question (see also radiocarbon dating).