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Definisi 'silica'
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English to English noun
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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 |  | source: wordnet30
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Silicon dioxide, SiO&?;. It constitutes ordinary quartz (also opal and tridymite), and is artifically prepared as a very fine, white, tasteless, inodorous powder. | | source: webster1913
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