Siliceous

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Siliceous \Si*li"ceous\, a. [L. siliceus, fr. silex, silicis, a
     flint.]
     Of or pertaining to silica; containing silica, or partaking
     of its nature. [Written also {silisious}.]
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  siliceous
       adj : relating to or containing or resembling silica; "gritrock is
             siliceous sandstone" [syn: {silicious}]