Semi-trailer

Origin

- + trailer

Full definition of semi-trailer

Noun

1. 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.
2. A tractor-trailer or big rig: a semi-trailer plus the truck or tractor pulling it.

Synonyms

• 18-wheeler
• artic
• articulated lorry
• big rig
• juggernaut
• semi
• semi-trailer truck
• tractor-trailer
• truck and trailer