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silicon Definition

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silicon
noun(sil-i-con)
a tetravalent nonmetallic element that occurs combined as the most abundant element next to oxygen in the earth's crust and is used especially in ferrosilicon for steelmaking, in other alloys, and in semiconductors
silicon
noun(sil-i-con)
a very hard dark crystalline compound SiC of silicon and carbon that is used as an abrasive and as a refractory and in electric resistors
silicon
noun(sil-i-con)
silica
silicon
noun(sil-i-con)
any of several compounds of silicon and nitrogen; specifically : a compound Si3N4 that is a hard ceramic used in high-temperature applications and in composites
silicon
geographical name(sil-i-con)
region of western California between San Jose and Palo Alto; a center of high-tech industries

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