| vitrification [´vi·trǝ·fǝ`kā·shǝn] ENGINEERING Heat treatment of a material such as a ceramic to produce a glazed surface. GEOLOGY Formation of a glassy or noncrystalline material. MEDICINE An experimental procedure for preserving human organs in which chemicals are added prior to cooling to prevent crystallization of water within and outside the cells, so that with coolings the molecules essentially become fixed in place. |