DICT.TW Dictionary Taiwan
18.225.56.78
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 RN /ˌɑrˈɛn/

From: WordNet (r) 2.0

 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, atomic
            number 86]
      2: a graduate nurse who has passed examinations for
         registration [syn: registered nurse]