| Hydrofluosilicic | a. [ Hydro-, 2 + fluorine + silicic. ] (Chem.) Pertaining to, or denoting, a compound consisting of a double fluoride of hydrogen and silicon; silicofluoric. See Silicofluoric. [ 1913 Webster ] |
| fluosilicic acid | (n) an unstable poisonous corrosive acid known primarily in the form of its salts, Syn. hydrofluosilicic acid |