A small cart or wagon moving on rails, as those used on the tramways in mines to carry coal or rubbish; also, a barrow or truck for shifting baggage, as at railway stations. [1913 Webster]
A motorized wheeled land vehicle, esp. a large one, with a cab for the driver and a separate rear compartment for transporting freight; called truck in the U. S. [PJC]
a large low horse-drawn wagon without sides. [WordNet 1.5]