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

Hyōgai

Grade: 5
on'yomi

Etymology

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白堊 (hakua, white chalk) +‎ (-ki, period).

For pronunciation and definitions of 白堊紀 – see the following entry.
白亜紀はくあき
[proper noun] the Cretaceous
(This term, 白堊紀, is an alternative spelling (dated) of the above term.)
  NODES
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