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第三紀

简第三纪 · 繁第三紀

Mandarin · pinyin dì sān jì

third period
tertiary (geological era since the extinction of the dinosaurs at the Cretaceous-Tertiary boundary 65 million years ago)

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Characters in this entry

第: dì · sequence, number; grade, degree
三: sān · three
紀: Look up this written character
纪: jì · record, annal, historical account

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Mandarin tones

4–1–4 · di4 san1 ji4

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第三紀 · find source passages ↗ · 第三纪 · find source passages ↗

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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

the Tertiary period

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

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