mail train

noun

1. A train used by the postal service to transport mail, and in some cases, to sort mail en route.

   “A journey from Mombasa to Kampala is by no means dull. The mail train consists of about 13 carriages, three first, three second, three or four third, a restaurant car and two or three old first class non-corridor carriages used as seconds. This comes to about 400 tons tare. In addition there are two vans for crew and three or four covered freight trucks.”

   “The slip took place near the village of Lahat, shortly after the passage of the up and down mail trains between Kuala Lumpur and Penang.”