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奧陶紀

简奥陶纪 · 繁奧陶紀

Mandarin · pinyin Ào táo jì

Ordovician (geological period 495-440m years ago)

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Characters in this entry

奧: Look up this written character
陶: táo · pottery, ceramics
紀: Look up this written character
奥: ào · mysterious, obscure, profound
纪: jì · record, annal, historical account

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

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Mandarin tones

4–2–4 · Ao4 tao2 ji4

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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.

奧陶紀 · find source passages ↗ · 奥陶纪 · find source passages ↗

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Compare dictionary sources Wiktionary · 1 sense · 1 Cantonese reading

Rime Cantonese 粵拼

ou3 tou4 gei2

Cantonese word readings for 奧陶紀. 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.

name

(geology) the Ordovician period (part of the Paleozoic era, spanning from 485.4 to 443.4 million years ago)

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

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