Meaning of silicic acid

silic'ic ac'id

Pronunciation: [key]
— Chem. Chem.
  1. any of certain amorphous gelatinous masses, formed when alkaline silicates are treated with acids, which dissociate readily into silica and water.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.