silicic acid

noun

, Chemistry.

1. any of certain amorphous gelatinous masses, formed when alkaline silicates are treated with acids, which dissociate readily into silica and water.

silicic acid

noun

1. a white gelatinous substance obtained by adding an acid to a solution of sodium silicate. It has an ill-defined composition and is best regarded as hydrated silica, SiO 2 . n H 2 O

Word History and Origins

Origin of silicic acid¹

First recorded in 1810–20

Example Sentences

Instead of another invasive surgery to remove the pacemaker, it simply dissolves over time into a nontoxic compound known as silicic acid.

From Science Daily

The samples with leachate had more silicic acid as well, which is used by plankton like diatoms to make their microscopic shells.

From Science Daily

After complete dissolution of sodium hydroxide, 2.5 g of silicic acid was added as the silica source.

From Nature

In the body, if the silicon is thin enough, it degrades in the presence of water into silicic acid, which is not harmful to health, and even sold as a dietary supplement.

From Scientific American

A double salt of boric and silicic acids, as in the natural minerals tourmaline, datolite, etc.

From Project Gutenberg