- Silica is silicon dioxide which is a hard mineral that looks like glass.
An example of silica is a material found in quartz.
Origin of silicaModern Latin ; from Classical Latin silex, flint: see silex
Origin of silicaNew Latin, from Latin silex, silic-, hard stone, flint.
(countable and uncountable, plural silicas)
- Silicon dioxide.
- Any of the silica group of the silicate minerals.
Origin: 1585-95; in Latin silex (“hard stone, flint"). Subsequently, silicon was first identified by the chemist Antoine Lavoisier in 1787 as a component element of the silex, or silicis for flint, and more generally what were termed "flints" during the era, nowadays as we would say "silica" or more formally, silicate.