Trucks

Scope note

Use for a variety of wheeled land vehicles, self-propelled or animal-drawn, for carrying bulk goods on their own chassis or in a combination tractor unit plus trailer, generally of heavier construction than passenger vehicles; horse-drawn examples usually have sloping floors and are often equipped with fifth wheels for increased maneuverability; motorized examples have lower transmission and rear-axle ratios than automobiles. For horse-drawn vehicles generally without sides, with level carrying surfaces, and with the rear wheels set below floor level, use "drays."