VITRIFIED

glassy, vitreous, vitrified

(adjective) (of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it; “glazed pottery”; “glassy porcelain”; “hard vitreous china used for plumbing fixtures”

VITRIFY

vitrify

(verb) undergo vitrification; become glassy or glass-like

vitrify

(verb) change into glass or a glass-like substance by applying heat

Source: WordNet® 3.1

Verb

vitrified

simple past tense and past participle of vitrify

Adjective

vitrified (comparative more vitrified, superlative most vitrified)

Converted into glass

Source: Wiktionary

Vit"ri*fied, a.

Definition: Converted into glass.

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