FLUOSILICIC

Flu′o‐si‐lic″ic (?), a. [[Fluo- + silicic: cf. F. fluosilicique.]] (Chem.) Composed of, or derived from, silicon and fluorine. Fluosilicic acid, a double fluoride of hydrogen and silicon, H2F6Si, obtained in solution in water as a sour fuming liquid, and regarded as the type of the fluosilicates; — called also silicofluoric acid, and hydrofluosilicic acid.