Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun silica

1 sense of silica

Sense 1
silica, silicon oxide, silicon dioxide -- (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)
       => oxide -- (any compound of oxygen with another element or a radical)