Hypertext Webster Gateway: "Vitrify"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Vitrify \Vit"ri*fy\, v. t. [imp. & p. p. {Vitrified}; p. pr. &
vb. n. {Vitrifying}.] [F. vitrifier; L. vitrum glass +
-ficare to make. See {Vitreous}, {-fy}.]
To convert into, or cause to resemble, glass or a glassy
substance, by heat and fusion.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Vitrify \Vit"ri*fy\, v. t.
To become glass; to be converted into glass.
Chymists make vessels of animal substances, calcined,
which will not vitrify in the fire. --Arbuthnot.
From WordNet (r) 1.7 (wn)
vitrify
v 1: change into glass or a glass-like substance by applying heat
2: undergo vitrification; become glassy or glass-like
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