- a bituminous substance, usually asphalt, for paving roads, parking lots, playgrounds, etc.
- a road covered with blacktop.
- pertaining to or surfaced with blacktop: a blacktop driveway.
verb (used with object), black·topped, black·top·ping.
- to pave with blacktop.
noun mainly US and Canadian
- a bituminous mixture used for paving
- a road paved with this mixture