第四紀

日本語 · 中文

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第四紀

Where it comes from

英語 Quaternaryの翻訳。

proper noun だいよんき

  1. 地球科学 新生代のうち、258万年前から現在までの人類が発展した時代。更新世と完新世に細分される。

In English

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Cite this
MLA

"第四紀." Wiktionary, via Micwyn, micwyn.com/word/ja/%E7%AC%AC%E5%9B%9B%E7%B4%80. Accessed 7 Nov. 2026.

APA

第四紀. (n.d.). In Wiktionary, via Micwyn. Retrieved November 7, 2026, from https://micwyn.com/word/ja/%E7%AC%AC%E5%9B%9B%E7%B4%80

Chicago

"第四紀." Wiktionary, via Micwyn. Accessed November 7, 2026. https://micwyn.com/word/ja/%E7%AC%AC%E5%9B%9B%E7%B4%80.

BibTeX
@misc{micwyn_2026,
  title = {第四紀},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/ja/%E7%AC%AC%E5%9B%9B%E7%B4%80},
  urldate = {2026-11-07}
}