silica /sil·i·ca/ (sil´ĭ-kah) silicon dioxide, SiO2, occurring in various allotropic forms, some of which are used in dental materials. See also silicosis.
Silica
silica (SiO2)
silica (sil´ik
) (quartz),
sil·i·ca (s l -k )n. A crystalline compound occurring abundantly as quartz, sand, and many other minerals and used to manufacture a variety of materials, especially glass and concrete. |
Silica
A substance (silicon dioxide) occurring in quartz sand, flint, and agate. It is used in making glass, scouring and grinding powders, pottery, etc.
Mentioned in: Silicosis
silica (SiO2)
[sil′i·kə]
Etymology: L, silex, flint
silicon dioxide, an inorganic compound occurring in nature as agate, sand, amethyst, flint, quartz, and other stones. It is one of the major constituents of dental porcelain and a common filler in resin composites. In granular form it serves as a dental abrasive and polishing agent. See also silicosis.
silica (sil´ik
) (quartz),n the purest of three major ingredients that make up dental porcelain. It imparts stiffness and hardness to the product and is the framework around which the kaolin and feldspar contract.
silica
silicon dioxide, a compound occurring naturally as quartz and in other forms. A common constituent of urinary calculi in agricultural animals, a rare occurrence in dogs.
silica calculi
see silica urolith.
silica gel
commonly used in the laboratory as a desiccant; has been used topically on dogs and cats for flea control.
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