semitrailer
[
sem
-i-trey-ler]
/ˈsɛm ɪˌtreɪ lər/
noun
1.
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
.
2.
tractor-trailer
.
Origin
1915-20;
semi-
+
trailer
Examples from the web for
semitrailer
Permanent registration of trailer and
semitrailer
fleets.
The kingpin, a part of the fifth wheel connection, is the pivot point between the tractor and
semitrailer
.
British Dictionary definitions for
semitrailer
semitrailer
/
ˌsɛmɪˈtreɪlə
/
noun
1.
a type of trailer or articulated lorry that has wheels only at the rear, the front end being supported by the towing vehicle