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Rn

Symbol, Chemistry
1.

R.N.

2.
British. Royal Navy.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for Rn

Rn

Chemical symbol
1.
radon

RN

abbreviation
1.
(in Canada) Registered Nurse
2.
Royal Navy
symbol
3.
Niger (international car registration)
Word Origin
(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
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Rn in Medicine

Rn
The symbol for the element radon.

RN or R.N.
abbr.
registered nurse

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Rn in Science
Rn  
The symbol for radon.
radon
  (rā'dŏn)   
Symbol Rn
A colorless, odorless, radioactive element in the noble gas group. It is produced by the radioactive decay of radium and occurs in minute amounts in soil, rocks, and the air near the ground. Radon is used as a source of radiation for the treatment of cancer and other diseases. Its most stable isotope is Rn 222 with a half-life of 3.82 days. Atomic number 86; melting point -71°C; boiling point -61.8°C; specific gravity (solid) 4. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Related Abbreviations for Rn

rn

Kirundi

Rn

radon

RN

  1. Niger (international vehicle ID)
  2. registered nurse
  3. Royal Navy
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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