Bitumen

n. substance mainly made up of hydrocarbons (i.e. asphalt)

Bitumen is a mixture of organic liquids that are highly viscous, black, sticky, entirely soluble in carbon disulfide, and composed primarily of highly condensed polycyclic aromatic hydrocarbons. Bitumen is the residual (bottom) fraction obtained by fractional distillation of crude oil. It is the heaviest fraction and the one with the highest boiling point, boiling at 525 degrees Celsius.
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Bitumen a series of natural and artificial dry petroleum products. When combined with pitch and used as a flooring it may contain sufficient phenol [more]Bitumen - Community and Resources

Noun
1. any of various naturally occurring impure mixtures of hydrocarbons
(hypernym) hydrocarbon
(hyponym) pitch, tar
(derivation) bituminize, bituminise

n. bitumen, substance mainly made up of hydrocarbons