VDict - Definition of radon

English - English (Wordnet) dictionary (also found in English - Vietnamese, )

radon

Noun

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

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Words pronounced/spelled similarly to "radon":
radian radium radome radon ratan ration rattan roadman rodin redden
Words contain "radon":
friedrich august kekule von stradonitz radon
Words contain "radon" in its definition in English - English (Wordnet) dictionary:
radon impermissibly presence