simple past tense and past participle of vitrify

Converted into glass

(transitive) To convert into glass or a glass-like substance by heat and fusion. / (intransitive) To be converted into glass, especially through heat.

present participle of vitrify

Third-person singular simple present indicative form of vitrify

Capable of being vitrified, or converted into glass by heat and fusion.

The condition of being vitrifiable

(construction) A type of corrosion-resistant pipe made by heating clay until it vitrifies.