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Search Result:Rn

Overview of noun rn

The noun rn has 2 senses

  • radon, Rn, atomic number 86 -- (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)

  • registered nurse, RN -- (a graduate nurse who has passed examinations for registration)