Firestone

  1. Proper noun.  (surname) .
  2. Noun.  Iron pyrites, formerly used for striking fire.
  3. Noun.  A flint.
  4. Noun.  A stone which will bear the heat of a furnace without injury; especially applied to the sandstone at the top of the upper greensand in the south of England, used for lining kilns and furnaces.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.