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Definitions for Silicon

[1] a nonmetallic element, having amorphous and crystalline forms, occurring in a combined state in minerals and rocks and constituting more than one fourth of the earth's crust: used in steelmaking, alloys, etc. Symbol : Si; atomic weight : 28.086; atomic number : 14; specific gravity : 2.4 at 20°C.
[2] a brittle metalloid element that exists in two allotropic forms; occurs principally in sand, quartz, granite, feldspar, and clay. It is usually a grey crystalline solid but is also found as a brown amorphous powder. It is used in transistors, rectifiers, solar cells, and alloys. Its compounds are widely used in glass manufacture, the building industry, and in the form of silicones. Symbol: Si; atomic no: 14; atomic wt: 28.0855; valency: 4; relative density: 2.33; melting pt: 1414°C; boiling pt: 3267°C (modifier; sometimes capital) denoting an area of a country that contains a density of high-technology industry

Words nearby Silicon

siliciferous, silicified wood, silicify, silicium, silicle, silicon, silicon alley, silicon carbide, silicon chip, silicon dioxide, silicon fen

Origin of Silicon

1817; silic(a) + -on, as in carbon and boron

Words that may be confused with Silicon

silicon, silicone

Word origin for Silicon

C19: from silica , on the model of boron, carbon