si·li·ceous 
(sĭ-lĭshəs)
(sĭ-lĭshəs)adj.
Containing, resembling, relating to, or consisting of silica.
[From Latin siliceus, of flint, from silex, silic-, flint.]
- propositional calculus
- propositional function
- propositionally
- propositus
- propound
- propounder
- propoxyphene
- propraetor
- propraetorial
- propraetorian
- propranolol
- propria
- proprietarily
- proprietary
- proprietary colony
- proprietor
- proprietorial
- proprietorially
- proprietorship
- proprietress
- propriety
- proprioception
- proprioceptive
- proprioceptor
- proprium