- The definition of asphalt is a black or brown, tar-like substance that is used to cover roadways and is usually mixed with gravel.
Blacktop on your driveway is an example of asphalt.
An asphalt parking lot.Licensed from iStockPhoto
- a brown or black, tarlike, bituminous substance that consists mainly of hydrocarbons, found in large flat beds or made by refining petroleum
- a mixture of this with sand or gravel, for cementing, paving, roofing, etc.
Origin: Midieval Latin asphaltus ; from Classical Greek asphaltos, probably ; from a-, not plush sphallein, to cause to fall, injure (; from Indo-European base an unverified form (s)p(h)el-, to split off from source spill): uncertain or unknown; perhaps so named because of use as protective substance for walls
- asphaltic adjective
Used by arrangement with John Wiley & Sons, Inc.
- A brownish-black solid or semisolid mixture of bitumens obtained from native deposits or as a petroleum byproduct, used in paving, roofing, and waterproofing.
- Mixed asphalt and crushed stone gravel or sand, used for paving or roofing.
Origin: Middle English aspalt, from Medieval Latin asphaltus, from Greek asphaltos.
- as·phalˈtic adjective
asphalt - Science Definition
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