Rn (Noun)
Meaning 1
A graduate nurse who has passed examinations for registration.
Classification
Nouns denoting people.
Synonyms
Hypernyms
Hyponyms
Meaning 2
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.
Classification
Nouns denoting substances.