silesia
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～ a region of central Europe rich in deposits of coal and iron ore; annexed by Prussia in 1742 but now largely in Poland
silesia
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～ a sturdy twill-weave cotton fabric; used for pockets and linings
Silex
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～ a vacuum coffee maker
silex
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～ a pure form of finely ground silica
silhouette
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～ an outline of a solid object (as cast by its shadow)
silhouette
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～ a drawing of the outline of an object; filled in with some uniform color
silica
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～ 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
silica gel
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～ a porous form of silica that is highly absorbent
silicate
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～ a salt or ester derived from silicic acid
silicic acid
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～ a jellylike substance (hydrated silica)
silicide
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～ any of various compounds of silicon with a more electropositive element or radical
silicle
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～ short broad silique occurring in some cruciferous plants
silicon bronze
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～ a bronze with 2-3% silicon that is resistant to corrosion
silicon dioxide
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～ 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
silicon chip
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～ electronic equipment consisting of a small crystal of a silicon semiconductor fabricated to carry out a number of electronic functions in an integrated circuit
silicon oxide
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～ 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
silicon
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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
silicon carbide
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～ an extremely hard blue-black crystalline compound (SiC) used as an abrasive and a heat refractory material; crystals of silicon carbide can be used as semiconductors
silicone
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～ any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation
silicone resin
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～ a polymeric silicone compound