vitrified > define

verb

• Change into glass or a glass-like substance by applying heat.
  • synonyms: vitrify
• Undergo vitrification; become glassy or glass-like.
  • synonyms: vitrify

adjective

• Of ceramics. ( having the surface made shiny and nonporous by fusing a vitreous solution to it)
  • usage: "glazed pottery"; "glassy porcelain"; "hard vitreous china used for plumbing fixtures"
  • synonyms: glassy, vitreous

• (a.) Converted into glass.
• (imp.&p.p.) of Vitrify.