semitrailer

[ sem-i-trey-ler ]
/ ˈsɛm ɪˌtreɪ lər /

noun

Also called semi. a detachable trailer for hauling freight, with wheels at the rear end, the forward end being supported by the rear of a truck tractor when attached. Compare full trailer.

Origin of semitrailer

First recorded in 1915–20; semi- + trailer

British Dictionary definitions for semitrailer

semitrailer
/ (ˌsɛmɪˈtreɪlə) /

noun

a type of trailer or articulated lorry that has wheels only at the rear, the front end being supported by the towing vehicle