|asphalt (ˈæsfælt, ˈæʃ-, -fɔːlt)|
|1.||any of several black semisolid substances composed of bitumen and inert mineral matter. They occur naturally in parts of America and as a residue from petroleum distillation: used as a waterproofing material and in paints, dielectrics, and fungicides|
|2.||a mixture of this substance with gravel, used in road-surfacing and roofing materials|
|3.||(modifier) containing or surfaced with asphalt|
|4.||(tr) to cover with asphalt|
|[C14: from Late Latin aspaltus, from Greek asphaltos, probably from |
|asphalt (ās'fôlt') Pronunciation Key
A thick, sticky, dark-brown mixture of petroleum tars used in paving, roofing, and waterproofing. Asphalt is produced as a byproduct in refining petroleum or is found in natural beds.