(ˈ)bī.|t(y)ümə̇nəs, bə̇.ˈt- adjective
Etymology: French or Latin; French bitumineux, from Middle French, from Latin bituminosus, from bitumin-, bitumen + -osus -ous
1.
a. : having the qualities of bitumen
b. of a mineral : having an odor of bitumen
2. : impregnated with, infiltrated by, or containing bitumen
bituminous shale
bituminous paint
a stretch of bituminous road
3. : of or relating to bituminous coal
the bituminous production of the U.S.