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silica

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silica

Main Entry: sil·i·ca

Pronunciation: \ˈsi-li-kə\

Function: noun

Etymology: New Latin, from Latin silic-, silex hard stone, flint

Date: circa 1801

: the dioxide of silicon SiO₂ occurring in crystalline, amorphous, and impure forms (as in quartz, opal, and sand respectively)

Learn more about "silica" and related topics at Britannica.com

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