English edit

Etymology edit

From French bitumineux.

Adjective edit

bituminous (comparative more bituminous, superlative most bituminous)

  1. Of or pertaining to bitumen.

Derived terms edit

Translations edit

Noun edit

bituminous (countable and uncountable, plural bituminouses)

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