Definitions for: Silica


[n] a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite



Webster (1913) Definition: Sil"i*ca, n. [NL., from L. silex, silics, a flint.]
(Chem.)
Silicon dioxide, SiO?. It constitutes ordinary quartz (also
opal and tridymite), and is artifically prepared as a very
fine, white, tasteless, inodorous powder.

Synonyms: silicon dioxide, silicon oxide

See Also: chert, cristobalite, flint, lechartelierite, oxide, quartz, silex, tridymite

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