硅酸 guīsuān silicic acid Definitions Defs Origin Strokes Stroke Words Sentences Sents 硅酸盐 guīsuānyán silicate 氟硅酸 fúguīsuān fluorosilicic acid an inorganic chemical compound with the formula H2SiF6, commonly used for water fluoridation and metal surface treatment硅酸氟铝 guīsuānfúlǚ aluminum fluorosilicate 硅酸盐水泥 guīsuānyánshuǐní Portland cement