n. & v.
--n.
1. a dark bituminous pitch occurring naturally or made from petroleum.
2 a mixture of this with sand, gravel, etc., for surfacing roads etc.
--v.tr. surface with asphalt.
Derivatives:
asphalter n. asphaltic adj.
Etymology: ME, ult. f. LL asphalton, -um, f. Gk asphalton