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二氧化碳

Mandarin · pinyin èr yǎng huà tàn

Meanings

  1. carbon dioxide CO2
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Characters in this entry

二
èr · two; twice
氧
yǎng · oxygen (element 8, O)
化
huà · change, convert, reform; -ize
碳
tàn · carbon (element 6, C)
Written characters and their own readings; the entry’s pronunciation is shown above.

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Entries containing 二氧化碳 ↗Words written with 二 ↗Words written with 氧 ↗Words written with 化 ↗Words written with 碳 ↗

Mandarin tones

4–3–4–4 · er4 yang3 hua4 tan4

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Compare dictionary sources Wiktionary · 1 sense · 1 Cantonese reading

Rime Cantonese 粵拼

ji6 joeng5 faa3 taan3

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

CanCLID contributors · CC BY 4.0 · source & license · Data pack

ji6 joeng5 faa3 taan3

Pleco · CC BY-SA 3.0 · Word reading; meanings not aligned.

Wiktionary English definitions · Chinese section

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

noun

  1. carbon dioxide

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

Wiktionary contributors · CC BY-SA 4.0 · source & license · Data pack