Rn

	Sponsored Links:
WordNet Dictionary
	Definition:		[n]  a graduate nurse who has passed examinations for registration [n]  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, registered nurse
	See Also:		argonon, chemical element, element, inert gas, noble gas, NP, nurse, nurse clinician, nurse practitioner, nurse-midwife