Pronunciation: (as'fôlt or, esp. Brit., -falt),[key] —n. 1. any of various dark-colored, solid, bituminous substances, native in various areas of the earth and composed mainly of hydrocarbon mixtures.
2. a similar substance that is the by-product of petroleum-cracking operations.
3. a mixture of such substances with gravel, crushed rock, or the like, used for paving.
—v.t. to cover or pave with asphalt.
—adj. of, pertaining to, or containing asphalt: asphalt tile.