bi·tu·men
bə-ˈtyü-mən
bī-,
-ˈtü-
especially British also ˈbit-yə-
1
: an asphalt of Asia Minor used in ancient times as a cement and mortar
2
: any of various mixtures of hydrocarbons (such as tar) often together with their nonmetallic derivatives that occur naturally or are obtained as residues after heat-refining natural substances (such as petroleum)
specifically
: such a mixture soluble in carbon disulfide
bi·tu·mi·ni·za·tion
bə-ˌt(y)ü-mə-nə-ˈzā-shən
bī-
plural -s
1
: treatment with bitumen
2
: the natural development of oil shale from ordinary shales
Love words? Need even more definitions?
Merriam-Webster unabridged



