What does the word petrifaction mean?

Usage examples for petrifaction

  1. In spite of his hardened convictions about life, the little rule of thumb by which he lived, he knew something of men and women; and he suspected that process of petrifaction in his daughter's heart. – Together by Robert Herrick (1868-1938)
  2. At the base of the fall we found a large petrifaction of wood imbedded in the debris of the falling cement and slate rock. – The Discovery of Yellowstone Park by Nathaniel Pitt Langford