Semi-trailer

A Semi-trailer is a trailer with no motive power but with wheels at the back and supported at the front by a truck or any other towing vehicle.

What is Semi-trailer ?
A Semi-trailer is a freight trailer without motive power but with wheels that can be drawn by a truck or any other towing vehicle. The semi-trailer is designed so that some of its weight and the weight of the load it carries rests upon the towing vehicle.