Search Result for "bitumen": 
Wordnet 3.0

NOUN (1)

1. any of various naturally occurring impure mixtures of hydrocarbons;

The Collaborative International Dictionary of English v.0.48:

Bitumen \Bi*tu"men\, n. [L. bitumen: cf. F. bitume. Cf. B['e]ton.] 1. 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. [1913 Webster] 2. 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. [1913 Webster]
WordNet (r) 3.0 (2006):

bitumen n 1: any of various naturally occurring impure mixtures of hydrocarbons
Easton's 1897 Bible Dictionary:

Bitumen Gen. 11:3, R.V., margin, rendered in the A.V. "slime"), a mineral pitch. With this the ark was pitched (6:14. See also Ex. 2:3.) (See SLIME.)