semi-trailer
a) A trailer without a front axle and with wheels only at the trailing end, designed to be pulled via a pivoting arrangement which also partially supports its weight.
b) A tractor-trailer or big rig: a semi-trailer plus the truck or tractor pulling it.
Syn: 18-wheeler, artic, articulated lorry, big rig, juggernaut, semi, semi-trailer truck, tractor-trailer, truck and trailer

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  • semi-trailer — large truck used for transferring cargo …   English contemporary dictionary

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