Rn
Symbol, Chemistry.
radon.
Other definitions for R.N. (2 of 2)
R.N.
abbreviation
British. Royal Navy.
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How to use Rn in a sentence
The new-comer wore aiguillettes and the cuff-rings of a Commander, R.N.
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British Dictionary definitions for Rn (1 of 2)
Rn
the chemical symbol for
radon
British Dictionary definitions for RN (2 of 2)
RN
abbreviation for
(in Canada) Registered Nurse
Royal Navy
symbol for
Niger (international car registration)
Origin of RN
2(sense 3) From R(epublic of) N(iger)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for Rn
Rn
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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