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二氧化硅

Mandarin · pinyin èr yǎng huà guī

silicon dioxide (SiO2)

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Characters in this entry

二: èr · two; twice
氧: yǎng · oxygen (element 8, O)
化: huà · change, convert, reform; -ize
硅: guī · silicon (element 14, Si)

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Mandarin tones

4–3–4–1 · er4 yang3 hua4 gui1

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Compare dictionary sources Wiktionary · 1 sense · 1 Cantonese reading

Rime Cantonese 粵拼

ji6 joeng5 faa3 gwai1

Cantonese word readings for 二氧化硅. This lexicon supplies readings, not definitions.

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Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

noun

(inorganic chemistry) silicon dioxide

Source page · dump 2026-09-02 · Contributors & history

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