silicon dioxide

1 definition found

silicon dioxide - WordNet (r) 2.1 (2005) :

  silicon dioxide
      n 1: 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 [syn:
           silica, silicon oxide, silicon dioxide]