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Fr

Symbol, Chemistry.
  1. francium.
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FR

  1. Real Estate. family room.
  2. freight release.
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fr.

  1. fragment.
  2. plural fr., frs. franc.
  3. from.
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Fr.

abbreviation
  1. Father.
  2. plural Fr., Frs. franc.
  3. France.
  4. frater1.
  5. French.
  6. Friar.
  7. Friday.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for fr

fr

the internet domain name for
  1. France
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Fr

abbreviation for
  1. Christianity
    1. Frater
    2. Father
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the chemical symbol for
  1. francium
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Word Origin

(for sense 1a) Latin: brother

FR

abbreviation for
  1. Faeroes (international car registration)
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fr.

abbreviation for
  1. franc
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Fr.

abbreviation for
  1. Christianity Father
  2. France
  3. French
  4. the German equivalent of Mrs
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Word Origin

(sense 4) from German Frau
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

fr in Medicine

Fr

  1. The symbol for the elementfrancium
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

fr in Science

Fr

  1. The symbol for francium.
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francium

[frănsē-əm]
Fr
  1. An extremely unstable, radioactive element of the alkali group. It is the heaviest metal of the group. Francium occurs in nature, but less than 28.35 g (1 oz) is present in the Earth's crust at any time. It has approximately 19 isotopes, the most stable of which is Fr 223 with a half-life of 21 minutes. Atomic number 87; valence 1. See Periodic Table.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.