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radon

/'r/eI/d/A/n/

Definitions, examples, synonyms and antonyms from WordNet 3.0.

noun

  1. 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

    noun.substance

    Synonyms atomic number 86 rn

    Source: WordNet 3.0

Nearby words

radium therapyradiusradius of curvatureradius vectorradixradomeradularaduliformradyeraradyera farrageiraetamraf

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