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    rn - Dictionary definition and meaning for word rn

    (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
    Synonyms : atomic number 86 , radon
    (noun) a graduate nurse who has passed examinations for registration
    Synonyms : registered nurse
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