Chinese

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evening; night; late the Ordovician epoch
trad. (晚奧陶世) 奧陶
simp. (晚奥陶世) 奥陶

Pronunciation

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Proper noun

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晚奧陶世

  1. (geology) the Late Ordovician epoch (part of the Ordovician period, spanning from 458.4 to 443.4 million years ago)