bituminous

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English[edit]

Etymology[edit]

From French bitumineux

Adjective[edit]

bituminous (comparative more bituminous, superlative most bituminous)

  1. Of or pertaining to bitumen.

Noun[edit]

bituminous (countable and uncountable, plural bituminouses)

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