Recreated from the original on Chambers Dictionary

asphaltnoun a brown or black semi-solid bituminous material that occurs in natural deposits and is also prepared synthetically by distillation from petroleum; b this material used in the construction industry for roofing, or mixed with rock chips or gravel to make paving and road-surfacing materials.
 

verb (asphalted, asphalting) to cover with asphalt. asphaltic

adj. ETYMOLOGY: 14c: from Greek asphaltos.