• (a.) Capable of being vitrified, or converted into glass by heat and fusion; as, flint and alkalies are vitrifiable.
Vit'ri·fi`a·ble adjective [ Confer French vitrifiable .] Capable of being vitrified, or converted into glass by heat and fusion; as, flint and alkalies are vitrifiable . 
vitrifiable, vitrifiability; vitrificable Capable of being converted into glass by heat and fusion. Flint and alkaline salts are vitrifiable.