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乙烷

Mandarin · pinyin yǐ wán

ethane (C2H6)

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Characters in this entry

乙: yǐ · second; 2nd heavenly stem
烷: wán · alkane

Written characters and their own readings; the entry’s pronunciation is shown above.

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Mandarin tones

3–2 · yi3 wan2

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Read this spelling in Classical texts

Follow a written form into the eight pinned witnesses: Analects, Mencius, Laozi, Zhuangzi, Xunzi, Han Feizi, Sunzi and the Mao Shijing. A match is a place to investigate; it does not prove that a modern dictionary sense fits the passage.

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Compare dictionary sources Wiktionary · 2 senses · 1 Cantonese reading

Rime Cantonese 粵拼

jyut3 jyun4

Cantonese word readings for 乙烷. 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

(organic chemistry) ethane

verb

(Internet slang) alternative form of 已完 (yǐ wán, “is already done for”)

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

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