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silicamore about silica


  2  definitions  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Silica  \Sil"i*ca\,  n.  [NL.,  from  L.  silex,  silics,  a  flint.] 
  Silicon  dioxide,  SiO?.  It  constitutes  ordinary  quartz  (also 
  opal  and  tridymite),  and  is  artifically  prepared  as  a  very 
  fine,  white,  tasteless,  inodorous  powder. 
  From  WordNet  r  1.6  [wn]: 
  n  :  a  white  or  colorless  vitreous  insoluble  solid;  various  forms 
  occur  widely  in  the  earth's  crust  as  quartz  or 
  cristobalite  or  tridymite  or  lechartelierite  [syn:  {silicon 
  oxide},  {silicon  dioxide}] 

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