石炭

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石炭

noun せきたん

古代の植物が完全に腐敗分解する前に地中に埋もれ、そこで長い期間地熱や地圧を受けて炭化したことにより生成した可燃性の岩石。燃料として用いるほか、製鉄においてはコークスが重要な役割を担う。

Similar: 煤炭, 黒ダイヤ

Thesaurus

noun

Similar: 煤炭, 黒ダイヤ

In English

coal uncountable: carbon rock
carbon fossil fuel made of impure carbon

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MLA

"石炭." Wiktionary, via Micwyn, micwyn.com/word/ja/%E7%9F%B3%E7%82%AD. Accessed 7 Nov. 2026.

APA

石炭. (n.d.). In Wiktionary, via Micwyn. Retrieved November 7, 2026, from https://micwyn.com/word/ja/%E7%9F%B3%E7%82%AD

Chicago

"石炭." Wiktionary, via Micwyn. Accessed November 7, 2026. https://micwyn.com/word/ja/%E7%9F%B3%E7%82%AD.

BibTeX

@misc{micwyn_2026,
  title = {石炭},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/ja/%E7%9F%B3%E7%82%AD},
  urldate = {2026-11-07}
}