This is not a dictionary! - Search for "radon" in The Danish Dictionary
January 15. 2013 from WordNet.dk
grundstof nr. 86; farveløs, lugtfri og tung luftar ... : Halvdelen af den radioaktive bestråling, som vi udsættes for, kommer fra luftarten radon, som især er i vores bolig
March 2. 2016 from wordnet.princeton.edu
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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