Vitrifying is a technical term that refers to the transformation of a material into a glassy state by heating it to a high temperature. Synonyms for this word include glassifying, solidifying, crystallizing, hardening, and petrifying. These words all convey the idea of transforming a material from a liquid or semi-liquid state to a solid state with a glass-like appearance. Vitrification is commonly used in the ceramic and glass industries and is an important process in the production of glass, ceramics, and other materials. Synonyms like solidifying and hardening can also refer to the process of becoming rigid or firm, but vitrifying specifically refers to the transformation into a glassy state.