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[fahyuh r-stohn] /ˈfaɪərˌstoʊn/
a fire-resisting stone, especially a kind of sandstone used in fireplaces, furnaces, etc.
Origin of firestone
late Middle English
before 1000; late Middle English fyyrstone, Old English fȳrstān. See fire, stone


[fahyuh r-stohn] /ˈfaɪərˌstoʊn/
Harvey Samuel, 1868–1938, U.S. industrialist and rubber manufacturer. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for firestone
Contemporary Examples
Historical Examples
  • At that she cast down flint and firestone and stared blankly.

    Tales of Space and Time Herbert George Wells
  • "I read your thoughts, sir," remarked the merchant to firestone on our return.

    The Young Cavalier Percy F. Westerman
  • Nodules and layers of "chert" (an impure kind of flint) occur in it, whilst in places it forms a hard rock called "firestone."

  • The prisoner made no reply, and firestone repeated the question, without result.

    The Young Cavalier Percy F. Westerman
  • There came to a nobleman an unknown man, who called himself Iskrzycki (spark or firestone), and offered to engage in his service.

    The Fairy Mythology Thomas Keightley
British Dictionary definitions for firestone


a sandstone that withstands intense heat, esp one used for lining kilns, furnaces, etc
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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