Meaning of RADON

Pronunciation:			'reydân
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WordNet Dictionary
	Definition:		[n]  a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
	Synonyms:		atomic number 86, Rn
	See Also:		argonon, chemical element, element, inert gas, noble gas
Medical Dictionary
	Definition:		A radioactive gas that is a byproduct of disintegrating radium.