VITRIFYING
Verb
vitrifying
present participle of vitrify
Source: Wiktionary
VITRIFY
Vit"ri*fy, v. t. [imp. & p. p. Vitrified; p. pr. & vb. n.
Vitrifying.] Etym: [F. vitrifier; L. vitrum glass + -ficare to make.
See Vitreous, -fy.]
Definition: To convert into, or cause to resemble, glass or a glassy
substance, by heat and fusion.
Vit"ri*fy, v. t.
Definition: To become glass; to be converted into glass.
Chymists make vessels of animal substances, calcined, which will not
vitrify in the fire. Arbuthnot.
Source: Webster’s Unabridged Dictionary 1913 Edition