English > silica: 1 sense > noun 1, substanceMeaning | 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. |
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Synonyms | silicon oxide, silicon dioxide |
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Narrower | chert | Variety of silica containing microcrystalline quartz |
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flint | A hard kind of stone |
silex | A pure form of finely ground silica |
Broader | oxide | Any compound of oxygen with another element or a radical |
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Substance of | cristobalite | A white mineral consisting of silica |
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quartz | A hard glossy mineral consisting of silicon dioxide in crystal form |
quartz glass, quartz, vitreous silica, lechatelierite, crystal | colorless glass made of almost pure silica |
tridymite | A mineral form of silica |
Spanish | dióxido de silicio, óxido de silicio, sílice |
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Catalan | diòxid de silici, sílice |
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Adjectives | siliceous, silicious | relating to or containing or resembling silica |
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