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n. Any of various flammable mixtures of hydrocarbons and other substances, occurring naturally or obtained by distillation from coal or petroleum, that are a component of asphalt and tar and are used for surfacing roads and for waterproofing.

n. Mineral pitch; a black, tarry substance, burning with a bright flame; Jew’s pitch. 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, et cetera.

n. By extension, any one of the natural hydrocarbons, including the hard, solid, brittle varieties called asphalt, the semisolid maltha and mineral tars, the oily petrolea, and even the light, volatile naphthas.

n. Mineral pitch; a black, tarry substance, burning with a bright flame; Jew's pitch. 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. See asphalt.

n. By extension, any one of the natural hydrocarbons, including the hard, solid, brittle varieties called asphalt, the semisolid maltha and mineral tars, the oily petroleums, and even the light, volatile naphthas.

n. The name given by Latin writers, especially by Pliny, to various forms of hydrocarbons now included under the names of asphaltum, maltha, and petroleum (see these words).

n. any of various naturally occurring impure mixtures of hydrocarbons

"But after reading up on the Keystone XL pipeline and its proposed cargo -- a thick, tarry form of oil called bitumen, which is diluted with other petroleum byproducts and pumped at higher pressures and temperatures than conventional crude -- Kelso said she and her family became nervous and backed away."

hydrocarbon   

bitumen process    elastic bitumen    asphalt   

crude bitumen    Jew's pitch    bituminous    refined bitumen   

asphalt   

tar    pitch   

Neumann    Newman    Schuman    Schumann    Truman    acumen    albumin    crewman    cumin    human