SILICIOUS Scrabble 11 Words With Friends 14 Scrabble letter values: S1I1L1I1C3I1O1U1S1 = 11 Definition adjective relating to or containing or resembling silica. — synonyms: siliceous Examples “gritrock is siliceous sandstone” See all 43 words you can make from SILICIOUS → 9-letter words Words starting with S Words ending with S ← Unscramble different letters