Meaning of SILICON OXIDE

WordNet Dictionary
	Definition:		[n]  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
	See Also:		chert, cristobalite, flint, lechartelierite, oxide, quartz, silex, tridymite