- A dark brown to black bitumen pitch that melts readily. It appears in nature in asphalt beds and is also produced as a by-product of the petroleum industry.
- noun a road surface made of a mixture of tar and gravel
- noun a brownish-black solid or semisolid substance that is a by-product of petroleum distillation, used for surfacing roads and paths and for waterproofing
- noun a surfacing material composed mainly of asphalt and gravel that hardens on cooling and is used for making roads and paths
Origin & History of “asphalt”
The ultimate source of asphalt is Greek ásphalton, but when it first came into English it was with the p that had developed in late Latin aspaltus: aspalte. The ph of the original Greek form began to be reintroduced in the 18th century.