vitreous vs vitrified

vitreous

adj
  • Of or resembling glass; glassy. 

  • Of a semi-crystalline substance where the atoms exhibit short-range order, but without the long-range order of a crystal. 

  • Of or relating to the vitreous humor of the eye. 

  • Having a shiny nonporous surface. 

noun
  • The vitreous humor. 

vitrified

adj
  • Converted into glass. 

How often have the words vitreous and vitrified occurred in a corpus of books? (source: Google Ngram Viewer )