Silicic acid Meaning, Definition & Usage

  1. noun a jellylike substance (hydrated silica)

WordNet

Definitions
  1. (Chem.), an amorphous gelatinous substance, Si(HO)4, very unstable and easily dried to silica, but forming many stable salts; called also orthosilicic, ∨ normal silicic, acid.

Webster 1913