bitumen

Definitions of bitumen
  1. noun
    any of various naturally occurring impure mixtures of hydrocarbons
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    types:
    pitch, tar
    any of various dark heavy viscid substances obtained as a residue
    coal tar
    a tar formed from distillation of bituminous coal; coal tar can be further distilled to give various aromatic compounds
    type of:
    hydrocarbon
    an organic compound containing only carbon and hydrogen
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