Vitrify implies a conversion, where something changes into glass or becomes glass-like. The artisan managed to vitrify the clay into beautiful glass beads.
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Intense conditions
The process of vitrifying often involves extreme heat or conditions to create the glass state. To vitrify the ceramic glaze, it must be fired at a high temperature.
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Technical usage
Typically used in scientific and technical contexts, 'vitrify' is not a common word in casual conversation. The procedure to vitrify the lava into obsidian was a success.