Search Result for "rn": 
Wordnet 3.0

NOUN (2)

1. 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;
[syn: radon, Rn, atomic number 86]

2. a graduate nurse who has passed examinations for registration;
[syn: registered nurse, RN]



The Collaborative International Dictionary of English v.0.48:

Rn \Rn\, n. (Chem.)
   the symbol for the chemical element radon.
   [PJC]


WordNet (r) 3.0 (2006):

Rn
    n 1: 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 [syn: radon, Rn, atomic
         number 86]
    2: a graduate nurse who has passed examinations for registration
       [syn: registered nurse, RN]