Inorganic Chemical
silicon dioxide
sil·i·con di·ox·ide
More Information:
ChemID; DrugBank; DailyMed; PDR
Definitions related to silicon dioxide:
  • A natural compound of silicon and oxygen found mostly in sand, Silica has three main crystalline varieties: quartz, tridymite, and cristobalite. Fine particulate silica dust from quartz rock causes over a long-term progressive lung injury, silicosis. (NCI04)
    NCI
    U.S. National Cancer Institute, 2021
  • Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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