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English noun: Rn

1. Rn (substance) 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


Synonymsatomic number 86, radon


Broader (hypernym)argonon, chemical element, element, inert gas, noble gas

2. RN (person) a graduate nurse who has passed examinations for registration


Synonymsregistered nurse


Broader (hypernym)nurse


Narrower (hyponym)NP, nurse clinician, nurse practitioner, nurse-midwife









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