/blak"top'/ , n., adj., v., blacktopped, blacktopping .
n.
1. a bituminous substance, usually asphalt, for paving roads, parking lots, playgrounds, etc.
2. a road covered with blacktop.
adj.
3. pertaining to or surfaced with blacktop: a blacktop driveway.
v.t.
4. to pave with blacktop.
[ 1930-35, Amer.; BLACK + TOP 1 ]