See also: 白垩纪

Chinese

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chalk period
trad. (白堊紀) 白堊
simp. (白垩纪) 白垩
 
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Etymology

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Orthographic borrowing from Japanese 白堊紀.

Pronunciation

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Proper noun

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白堊紀

  1. (geology) the Cretaceous period (part of the Mesozoic era, spanning from 145.0 to 66.0 million years ago)

See also

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Japanese

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Kanji in this term
はく
Grade: 1

Hyōgaiji

Grade: 5
on'yomi

Etymology

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白堊 (hakua, white chalk) +‎ (-ki, period); see 白亜紀 for more.

Pronunciation

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Proper noun

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(はく)()() (Hakuaki

  1. Alternative spelling of 白亜紀 (Cretaceous period)