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 ?
For the southern sites, presently known only on the coast, the likely sources for silicious raw material are the inland mountains (Vierra 1992), suggesting, again, movement between coastal and inland areas.
The area known as the 'North Fold Nose' is the direct northward extension of the Ulu fold axis, containing silicious metavolcanics hosting polymetallic quartz veins.
All five holes have intersected zones of 20 - 50 percent disseminated pyrite/pyrrhotite mineralization occurring in a silicious mafic granitic rock.
All five holes have intersected zones of 20 - 50% disseminated pyrite/pyrrhotite mineralization occurring in a silicious mafic granitic rock.
Extensive surface exploration has disclosed several showings of gold in the large lode systems, indicating the possibility of gold bearing silicious caps, breccia zones, auriferous porphyries and wide belts of gold with sulphides between the lodes.
Throughout the Jampang area, there exists numerous gold-bearing veins, stockworks, breccia pipes and sheeted vein systems in an highly altered silicious zone varying from 2.