• synonyms


See more synonyms for Rn on Thesaurus.com
Symbol, Chemistry.
  1. radon.
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  1. registered nurse.
  2. British. Royal Navy.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for rn

Contemporary Examples

Historical Examples

  • Tod says that almost all the princes of Rjastn followed the Rn at Kanw.

    The Bbur-nma in English

    Babur, Emperor of Hindustan

  • Rn Ronsard accepted it with a slight but not over-obsequious salutation.

    Temporal Power

    Marie Corelli

  • He has spoken often to our people, and he is father Rn's friend.

    Temporal Power

    Marie Corelli

  • She was daughter to Rn, who was a relation of the King of France.

  • Rn preceded her, and in a few minutes they stood in the perfumer's shop.

    Marguerite de Valois

    Alexandre Dumas

British Dictionary definitions for rn


the chemical symbol for
  1. radon
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abbreviation for
  1. (in Canada) Registered Nurse
  2. Royal Navy
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symbol for
  1. Niger (international car registration)
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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

rn in Medicine


  1. The symbol for the elementradon


rn in Science



The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.