rn

Noun (2)

1. a graduate nurse who has passed examinations for registrationSynonyms: registered nurseType of nurseKinds nurse practitioner, nurse-midwife
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 healthSynonyms: radonatomic number 86Type of noble gas, inert gas