si·lic·ic 
(sĭ-lĭsĭk)
(sĭ-lĭsĭk)adj.
Relating to, resembling, containing, or derived from silica or silicon.
- walking papers
- walking stick
- walk in the park
- walk-off
- walk off/away with
- walk off with
- walk of life
- walk of shame
- walk-on
- walk on air
- walk out
- walkout
- walk out on
- walk over
- walkover
- walk (someone) through
- walk someone through
- walk the plank
- walk the walk
- walk through
- walk-through
- walk through
- walkup
- walk-up
- walkway