ˈvi.trəˌfī verb
( -ed/-ing/-es )
Etymology: French vitrifier, from Middle French, from Latin vitrum glass + Middle French -ifier -ify — more at woad
transitive verb
: to change into glass or a glassy substance by heat and fusion : make vitreous ; especially : to produce in (a ceramic ware) enough glassy phase or close crystallization by high firing to make nonporous
intransitive verb
: to undergo vitrification : become vitreous