noun. One of the so-called bituminous substances which are widely diffused over the earth, and are of great practical importance. See bitumen and bituminous.

noun. asphalt

"He even used the tar from the seepage, known as asphaltum, to waterproof two of his ships, just as the native Chumash Indians did with their canoes."

gum asphaltum  

bauxite  beamless  benzol  calendula  copal