Meaning of silica

sil•i•ca

Pronunciation: (sil'i-ku), [key]
— n.
  1. the dioxide form of silicon, SiO, occurring esp. as quartz sand, flint, and agate: used usually in the form of its prepared white powder chiefly in the manufacture of glass, water glass, ceramics, and abrasives. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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