- 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.
- 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 of asphaltMedieval Latin asphaltus ; from Classical Greek asphaltos, probably ; from a-, not + 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
- A brownish-black solid or semisolid material consisting of bitumens obtained from native deposits or as a petroleum byproduct and used in paving, roofing, and waterproofing.
- This material mixed with crushed stone gravel or sand, used for paving or roofing.
transitive verbas·phalt·ed, as·phalt·ing, as·phalts
Origin of asphaltMiddle English aspalt, from Medieval Latin asphaltus, from Greek asphaltos.
(third-person singular simple present asphalts, present participle asphalting, simple past and past participle asphalted)
- To pave with asphalt.