siliceous

2 definitions found

siliceous - Collaborative International Dictionary of English v.0.48 :

  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]

siliceous - WordNet (r) 2.1 (2005) :

  siliceous
      adj 1: relating to or containing or resembling silica; "gritrock
             is siliceous sandstone" [syn: siliceous, silicious]