silicon definición, silicon significado | diccionario de inglés definición

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a    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  
b    modifier; sometimes cap   denoting an area of a country that contains a density of high-technology industry  
     (C19: from silica, on the model of boron, carbon)  

silicon carbide  
      n   an extremely hard bluish-black insoluble crystalline substance produced by heating carbon with sand at a high temperature and used as an abrasive and refractory material. Silicon carbide whiskers have a high tensile strength and are used in composites; very pure crystals are used as semiconductors. Formula: SiC  
silicon chip  
      n      another term for       chip       8  
silicon-controlled rectifier  
      n   a semiconductor rectifier whose forward current between two electrodes, the anode and cathode, is initiated by means of a signal applied to a third electrode, the gate. The current subsequently becomes independent of the signal. It is a type of thyristor,   (Abbrev.)    SCR  
silicon rectifier  
      n     (Electronics)   a rectifier consisting of a semiconductor diode using crystalline silicon  
Silicon Valley  
1    an industrial strip in W California, extending S of San Francisco, in which the U.S. information technology industry is concentrated  
2    any area in which industries associated with information technology are concentrated  
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