Definition of mail cart in English:
A cart for carrying mail by road.
- A little over a month ago I was walking up to Peirce's main offices in another attempt to see Royalton when I passed by an old man with a mail cart.
- The mail cart had already gone round long ago, Clint frowned at the small package curiously.
- In the yard were the usual out-offices, together with provision for the engineers' stores, and shelters for mail carts, bicycles, etc.