bituminous
adjective
- of the nature of bitumen, esp. with regard to its color and combustibility
- containing or made from bitumen
See bituminous in American Heritage Dictionary 4
(bĭ-to͞oˈmə-nəs, -tyo͞oˈ-, bī-)
adjective- Like or containing bitumen.
- Of or relating to bituminous coal.
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