from The Century Dictionary.

  • noun Same as petrifaction.
  • noun Obduracy; callousness.

from the GNU version of the Collaborative International Dictionary of English.

  • noun See petrifaction.
  • noun Fig.: Obduracy; callousness.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun the process of replacing the organic residues of plants (and animals) with insoluble salts, the original shape and topography being retained
  • noun figuratively obduracy; callousness

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Greek πέτρα "petra" (rock).



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