SILICON
\sˈɪlɪkən], \sˈɪlɪkən], \s_ˈɪ_l_ɪ_k_ə_n]\
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a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
By Princeton University
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a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
By DataStellar Co., Ltd
By William Dodge Lewis, Edgar Arthur Singer
By Willam Alexander Newman Dorland
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A non-metallic element, existing in several allotropic forms. At ordinary temperatures it does not react with water or the ordinary mineral acids. In many ways it resembles carbon. It is found as silica or as the silicates in the urine and connective tissue, the hair and feathers. It occurs in nature in great abundance under the form of silica or the silicates. Atomic weight, 28.4. Symbol, Si.
By Smith Ely Jelliffe
