🇯🇵Japanese Source WordCode: JA

石炭灰

Pronunciation / Transliteration: sekitan hai

🇬🇧 Direct English Meaning:
Coal-Ash/koʊl æʃ/
nounCEFR B2 (Upper)Top #15000 frequency
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🇯🇵 Example Sentence in Japanese:

"石炭灰は適切に処理される必要があります。"

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The fine particles that remain after coal has been burned.

    "The power plant must manage its coal-ash disposal to comply with environmental regulations."
  2. 2

    A byproduct of burning coal that can be used in construction and other applications.

    "Coal-ash can be repurposed as a lightweight aggregate in concrete production."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term 'coal-ash' is derived from the combination of 'coal', which comes from Old English 'cāl', and 'ash', originating from Old English 'æsc'. The term has evolved to describe the residual product of combustion of coal, particularly in industrial contexts, since the 19th century.

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