Definition of Rn in English :
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Rn meaning in English
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Rn
see synonyms of rnNoun
1. atomic number 86, radon, rn
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
WordNet Lexical Database for English. Princeton University. 2010.
Rn
see synonyms of rnCollins English Dictionary. Copyright © HarperCollins Publishers
Rn
see synonyms of rnWebster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
Rn
see synonyms of rnThe American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.