A semitrailer is the long rear section of a truck that can bend when it turns.
[US]
semitrailer in British English
(ˌsɛmɪˈtreɪlə)
noun
US
a type of trailer or articulated lorry that has wheels only at the rear, the front end being supported by the towing vehicle
semitrailer in American English
(ˈsɛmɪˌtreɪlər)
US
noun
a detachable trailer designed to be attached to a coupling at the rear of a tractor (sense 2), by which it is partly supported
semitrailer in Automotive Engineering
(sɛmitreɪlər)
Word forms: (regular plural) semitrailers
noun
(Automotive engineering: Vehicle types)
A semitrailer is the long rear section of a truck that can bend when it turns.
The truck driver was slightly injured when his semitrailer overturned.
Heavy trucks and semitrailers account for about 15 percent of all traffic along the highway, yet make up 25 percentof all vehicles involved in fatal crashes.
Traffic was halted for an hour in the snow after several semitrailers that had stopped to put on chains had trouble getting going again.