Last Updated：2025/11/19

(chemistry) A hard glassy mineral, SiO₂, occurring as quartz, sand, opal etc. Informally known as silica.

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silicon dioxide

Source Word

silicon dioxide

Noun

uncountable

(chemistry) A hard glassy mineral, SiO₂, occurring as quartz, sand, opal etc. Informally known as silica.

Japanese Meaning

（化学）硬く、ガラス状の鉱物。石英、砂、オパールなどとして存在し、非公式にはシリカと呼ばれる。

The glassblower adjusted the furnace temperature to prevent the silicon dioxide in the mixture from crystallizing.

ガラス吹き職人は混合物中の二酸化ケイ素が結晶化するのを防ぐために炉の温度を調整した。

Sense（1）

(chemistry) A hard glassy mineral, SiO₂, occurring as quartz, sand, opal etc. Informally known as silica.