silica

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silica

 [sil´ĭ-kah]
silicon dioxide, which occurs in nature as agate, amethyst, sand, quartz, chalcedony, cristobalite, and flint; it is one of the major constituents of dental porcelain, and in granular form serves as a dental abrasive and polishing agent. See also silicosis.

sil·i·ca

(sil'i-kă),
The chief constituent of sand, hence of glass.
[Mod. L. fr. L. silex (silic-), flint]

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 (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

Homeopathy
Silica, see there.

Toxicology
The highly fibrogenic mineral form of silicon, silicon dioxide.

Silica

Homeopathy
A homeopathic remedy prepared from quartz, which is used to stimulate the immune system and to treat abscesses, acne, athlete’s foot, breast cysts, earache, fractures, haemorrhoids, infections (colds, flu and otitis), insomnia, lymphadenopathy, periodontal disease, poor bone growth and sweating.

sil·i·ca

(sil'i-kă)
The chief constituent of sand, hence of glass.
Synonym(s): silicon dioxide.
[Mod. L. fr. L. silex (silic-), flint]

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

sil·i·ca

(sil'i-kă)
The chief constituent of sand, hence of glass.
Synonym(s): silicon dioxide.
[Mod. L. fr. L. silex (silic-), flint]

silica (sil´ikə) (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.
References in periodicals archive ?
The World Specialty Silicas to 2018 market research report profiles global industry players such as Akzo Nobel, Cabot, Evonik Industries, Fuso Chemical, Ecolab, WR Grace, JM Huber, Oriental Silicas, PPG Industries, Solvay, PQ, Tokuyama and Wacker Chemie.
Demand for precipitated silica is increasing," said Fischer.
The polar nature of silica prevents the excessive blooming of the antiozonant, and thus the appearance of the sidewall remains good.
WORLD SPECIALTY SILICA DEMAND (thousand metric tons) % Annual Growth 2006- 2011- Item 2006 2011 2016 2011 2016 Specialty 1670 2125 2790 4.
The in situ generated silicas possess high specific surface area and interact with the rubber.
Combinations of Sylobloc silicas and slip aids or other additives show improved benefits over the separate addition of two or more functional additives.
Currently, high surface area silica and alumina are the pigments of choice for ink jet coating in high quality ink jet papers, according to Malla.
13 Electrical & Electronic Equipment Market for Specialty Silicas
The breaking stress of the PNIPA/silica composite hydrogels increased almost linearly with increasing silica content for both hydrogels containing the unmodified and modified silicas, as shown as Fig.
Rubber will remain the largest market for specialty silicas in the US, accounting for nearly one-fifth of total demand in 2001.
Asia/Pacific region to offer best growth opportunities The Asia/Pacific region held the largest share of the global specialty silicas market in 2013 and is expected to post the fastest growth through 2018.
Cosmetics and toiletries represented the largest market for specialty silicas in value terms in 2010.