[semi.trail.er] n (1919) 1: a freight trailer that when attached is supported at its forward end by the fifth wheel device of the truck tractor
2: a trucking rig made up of a tractor and a semitrailer
[semi.trail.er] n (1919) 1: a freight trailer that when attached is supported at its forward end by the fifth wheel device of the truck tractor
2: a trucking rig made up of a tractor and a semitrailer
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012