S0406000 (sĭ-lĭs′ə-fī′)v.si·lic·i·fied, si·lic·i·fy·ing, si·lic·i·fiesv.tr. To convert into or impregnate with silica.v.intr. To become converted into or impregnated with silica.si·lic′i·fi·ca′tion(-fĭ-kā′shən) n.
silicification
silicification
[sə‚lis·ə·fə′kā·shən] (geology) Introduction of or replacement by silica. Also known as silification.