Silica

noun

noun ·3 syllables ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    Silicon dioxide. countable, uncountable
  2. 2
    a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite wordnet
  3. 3
    Any of the silica group of the silicate minerals. countable, uncountable

    "Its Blair County property was sited at the foot of ganister-covered Dunnings Mountain to compete with the Mount Union plants making silica bricks for the steel industry."

Synonyms

All synonyms
alabasterasphalte551e551 when used as an anti-caking agentmineralsilicon dioxide

Example

More examples

"It has high percentage of silica and alumina."

Etymology

From New Latin silica, from Latin silex (“hard stone, flint”), on model of alumina, soda.

Related phrases

hydrated silicasilica gelsilica glasssilica woolsilica groupsilicon dioxide

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.