silica

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sil·i·ca

 (sĭl′ĭ-kə)
n.
A white or colorless crystalline compound, SiO2, which in the form of quartz and certain other minerals is a chief component of the earth's crust. Silica sand is used in making a wide variety of materials, such as glass and concrete.

[New Latin, from Latin silex, silic-, hard stone, flint.]

silica

(ˈsɪlɪkə)
n
1. (Elements & Compounds) the dioxide of silicon, occurring naturally as quartz, cristobalite, and tridymite. It is a refractory insoluble material used in the manufacture of glass, ceramics, and abrasives
2. (Elements & Compounds) short for silica glass
[C19: New Latin, from Latin: silex]

sil•i•ca

(ˈsɪl ɪ kə)

n.
the dioxide form of silicon, SiO2, occurring esp. as quartz sand, flint, and agate: used chiefly in the manufacture of glass, water glass, ceramics, and abrasives.
[1795–1805; < New Latin, derivative of Latin silex hard stone, flint, boulder]

sil·i·ca

(sĭl′ĭ-kə)
Silicon dioxide, SiO2, a compound that occurs widely in rocks and mineral forms, such as quartz, sand, and flint, and is used to make glass, concrete, and other materials.

siliceous (sĭ-lĭsh′əs) adjective
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.silica - a white or colorless vitreous insoluble solid (SiO2)silica - a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
cristobalite - a white mineral consisting of silica; found in volcanic rocks
quartz - a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
chert - variety of silica containing microcrystalline quartz
flint - a hard kind of stone; a form of silica more opaque than chalcedony
lechatelierite, quartz, quartz glass, vitreous silica, crystal - colorless glass made of almost pure silica
oxide - any compound of oxygen with another element or a radical
silex - a pure form of finely ground silica
tridymite - a mineral form of silica
Translations

silica

[ˈsɪlɪkə] Nsílice f

silica

[ˈsɪlɪkə] nsilice fsilica gel ngel m de silice

silica

nKieselerde f

silica

[ˈsɪlɪkə] nsilice f

silica

n sílice m
References in periodicals archive ?
Because of the small particle size, unsaturated bonds and hydroxy groups of different link states on the surface, the surface of nanometer SiO2 is of high energy and high polarity.
According to TAS diagrams by [4] and [2] which are drawn according to alkaline Na2O and K2O quantities in SiO2, all the studied samples are placed in quartzmonzonite, granite, diorte, quartzmonzodiorite, monzonite and granodiorite range (figs.
4% SiO2 (reactive) with further drilling campaign completed
Papers are in sections on SiO2 removal and drying, surface chemistry of Si and Ge, FEOL selective wet etching and corrosion, FEOL photo-resist removal and substrate loss, particle removal and damage, contamination control, metrology, post-CMP cleaning, and BEOL and contact cleaning.
VARI-cool utilizes effect pigments (commonly referred to as "interference pigments") made from SiO2 (silicon dioxide) platelets that are specially coated with metal oxides.
SiO2 Particles with Functional Nanocrystals: Design and Fabrication for Biomedical Applications
1 Global Others (SOI, SiO2, Si3Ni4) photonic IC market size and forecast, 2011 - 2019 (USD million)
The concentrate grades (Fe, V2O5, TiO2, SiO2, Al2O3, P, LOI, CaO, K2O, MgO, Mn, and S) were then back calculated from these estimates.
SGS (March 2011) LIM (February 2011) Tonnes Fe Mn SiO2 Tonnes Fe Mn SiO2 Class x 1000 % % % x 1000 % % % Fe Ore
Structure and Electrochemical Performance of Modificated LiMn2O4 by S-Co Codoping and Nano SiO2 Surface Coating