Wiktionary
n. 1 (context US English) a truck with no sides, used to carry large, heavy objects 2 A form of such a truck adapted or designed specifically as a tow truck or for transporting other vehicles.
Wikipedia
A flatbed truck (or flatbed lorry in British English) is a type of truck which can be either articulated or rigid. As the name suggests, it has an entirely flat, level 'bed' body with no sides or roof. This allows for quick and easy loading of goods, and consequently they are used to transport heavy loads that are not delicate or vulnerable to precipitation, such as construction equipment, and also for abnormal loads that require more space than is available on a closed body.
Usage examples of "flatbed truck".
There was a defined path and at its end what appeared to be the wreck of a flatbed truck, ages old and mostly overgrown.
Every bump and divot in the road made the speeding flatbed truck rattle like a child’.
By dusk about fifty men were piled on the big flatbed truck, sitting around its edges with their legs hanging off.
Twilly had the radio turned up loud for Derek and the Dominoes, so at first he didn't hear Vecker Darby's flatbed truck.
Quinn walked over to the cab of a flatbed truck and pulled four bottles from an ice chest.
This generated an additional delay while the excavator was located, loaded on a low-boy flatbed truck, and driven out from town.
Mel Meyer saw some boys on the shoulder of the interstate checking the tie-downs on a flatbed truck carrying a piece of farm machinery.
Now the wreck was being cleared away, and loaded onto a flatbed truck.