tectosilicateWiktionary 原文英美构词拆解tectotecto-前缀silicatesilicate词干tecto-Tectum, dorsal portion, outer surface.词源说明From tecto- + silicate.释义名词noun1(mineralogy) Any of various silicate minerals, mostly aluminosilicates, with a three-dimensional framework of silicate tetrahedra with SiO2 or a 1:2 ratio, making up the greater part of Earth's crust.