Vitrified

a.

1.

Converted into glass.

Adj.

1.

vitrified - (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" Synonyms: glassy, vitreous

backed, calcified, callous, calloused, case-hardened, crusted, crusty, crystallized, fossilized, granulated, hardened, hornified, incrusted, indurate, indurated, lapidified, ossified, petrified, reinforced, rigidified, sclerotic, set, solidified, steeled, stiffened, strengthened, toughened