Bitumen

bi-tū′men, or bit′yu-men, n. a name applied to various inflammable mineral substances, as naphtha, petroleum, asphaltum.— v.t. Bitū′minate , to mix with or make into bitumen—also Bitū′minise .— adjs. Bitū′mino us , Bitūmed′ ( Shak. ), impregnated with bitumen. [L.]