Definitions for "Tractor Trailer"
Keywords:  trailer, truck, tra'l, trak't, tor
a truck consisting of a tractor and trailer together
A two-part truck. The tractor is the cab where the driver sits, and the trailer, hooked to the tractor, hauls the freight.
Tractor is the driving unit of a large truck; trailer is the container unit.
Keywords:  semitrailer, combination
Tractor and semitrailer combination.