English

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Alternative forms

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Etymology

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From French bitumineux.

Adjective

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bituminous (comparative more bituminous, superlative most bituminous)

  1. Of or pertaining to bitumen.

Derived terms

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Translations

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Noun

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bituminous (countable and uncountable, plural bituminouses)

  1. (uncountable) Bituminous coal.
  2. (countable) A type or grade of bituminous coal.