Verb
To convert into, or cause to resemble, glass or a glassy substance, by heat and fusion.
To become glass; to be converted into glass.
Source: Webster's dictionaryRevival would require repairing damage from lack of oxygen, cryoprotectant toxicity, thermal stress (fracturing), freezing in tissues that do not successfully vitrify, and reversing the effects that caused death. Source: Internet
On cooling, some liquids vitrify into a glass rather than transform to the equilibrium crystal phase. Source: Internet