D defs.my
Entry 1 sense Webster, 1913

Bituminous

/bĭt-o͞om'-ən-əs/ · Bi·tu·mi·nous · IPA /bɪtˈuːmənəs/
01 a. Having the qualities of bitumen; compounded with bitumen; containing bitumen.
  1. 1.
    Having the qualities of bitumen; compounded with bitumen; containing bitumen.
    “Near that bituminous lake where Sodom flamed.” Milton.
Phrases & compounds
Bituminous coal — a kind of coal which yields, when heated, a considerable amount of volatile bituminous matter. It burns with a yellow smoky flame.
Bituminous limestone — a mineral of a brown or black color, emitting an unpleasant smell when rubbed. That of Dalmatia is so charged with bitumen that it may be cut like soap.
Bituminous shale — an argillaceous shale impregnated with bitumen, often accompanying coal.