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(Science: chemistry) Pertaining to, derived from, or resembling, silica; specifically, designating compounds of silicon; as, silicic acid.
(Science: chemistry) Silicic acid, an amorphous gelatinous substance, Si(hO)4, very unstable and easily dried to silica, but forming many stable salts.
Synonym: orthosilicic, or normal silicic, acid.
Origin: L. Silex, silicis, a flint: cf. F. Silicique.