noun Etymology: Latin silic-, ~ hard stone, flint Date: circa 1592 silica or a siliceous material (as powdered tripoli) especially for use as a filler in paints or wood
SILEX
Meaning of SILEX in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012