SILICIUM is a playable word

silicium Scrabble® Dictionary

noun
pl. siliciums
silicon
34 Playable Words can be made from "SILICIUM"
   2-Letter Words (7 found)
   3-Letter Words (13 found)
   4-Letter Words (8 found)
   5-Letter Words (4 found)
   6-Letter Words (1 found)
   8-Letter Words (1 found)