plural of bitumen

A sticky, black, highly viscous liquid or semi-solid form of petroleum, burning with a bright flame. It occurs as an abundant natural product in many places, as on the shores of the Dead and Caspian Seas. It is used in cements, in the construction of pavements, etc.; Mineral pitch.

To cover or fill with bitumen.

simple past tense and past participle of bitumen

present participle of bitumen

plural of modified bitumen

(construction) A bitumen modified by including one or more polymers