/ ˈvɪtrɪfaɪ; NAmE / verb
( vit·ri·fies , vit·ri·fy·ing , vit·ri·fied , vit·ri·fied ) [ v , vn ] ( technical ) to change or make sth change into glass, or a substance like glass
► vit·ri·fi·ca·tion / ˌvɪtrɪfɪˈkeɪʃn; NAmE / noun [ U ]
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WORD ORIGIN
late Middle English : from French vitrifier or based on Latin vitrum glass.