- any of various dark-colored, solid, bituminous substances, native in various areas of the earth and composed mainly of hydrocarbon mixtures.
- a similar substance that is the by-product of petroleum-cracking operations.
- a mixture of such substances with gravel, crushed rock, or the like, used for paving.
- to cover or pave with asphalt.
- of, relating to, or containing asphalt: asphalt tile.
Origin of asphalt
Examples from the Web for asphalting
Historical Examples of asphalting
In asphalting damp places, such as cellars and foundations, a brick invert is always laid in asphalt beneath the concrete.
When asphalting suspension bridges, a sheet of canvas is usually spread over the concrete.
To remedy this, the asphalting was taken up and a Nicholson wood pavement was put down.The Enchanted Typewriter
John Kendrick Bangs
- 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
- a mixture of this substance with gravel, used in road-surfacing and roofing materials
- (modifier) containing or surfaced with asphalt
- (tr) to cover with asphalt
Word Origin for asphalt
early 14c., "hard, resinous mineral pitch found originally in Biblical lands," from Late Latin asphaltum, from Greek asphaltos "asphalt, bitumen," probably from a non-Greek source, possibly Semitic [Klein, citing Lewy, 1895]. Another theory holds it to be from Greek a- "not" + *sphaltos "able to be thrown down," taken as verbal adjective of sphallein "to throw down," in reference to a use of the material in building.
Meaning "paving composition" dates from 1847 and its popular use in this sense established the modern form of the English word, mostly displacing asphaltum, asphaltos. As a verb meaning "to cover with asphalt," from 1872.
- 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.