silicon oxide

Noun

1.

silicon oxide - a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite Synonyms: silica, silicon dioxide

chert, cristobalite, flint, lechartelierite, oxide, quartz, silex, silica, silicon dioxide, tridymite