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寒武紀

简寒武纪 · 繁寒武紀

Mandarin · pinyin Hán wǔ jì

Cambrian geological period (541-485.4 million years ago)

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Characters in this entry

寒: hán · cold, wintry, chilly
武: wǔ · military; martial, warlike
紀: Look up this written character
纪: jì · record, annal, historical account

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Mandarin tones

2–3–4 · Han2 wu3 ji4

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Wiktionary English definitions · Chinese section

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name

(geology) the Cambrian period (part of the Paleozoic era, spanning from 541 to 485.4 million years ago)

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

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