steam wagon

plural steam wagons

1. historicalAn early steam-powered road vehicle for carrying freight.

   1 more example

   The old North Eastern Railway, which was a pioneer in so many directions, obtained powers in 1905 for mechanical road operation, and shortly afterwards began to operate both steam wagons and petrol-driven buses. The steam wagons were used on country cartage services, but presumably they proved too expensive, and they were replaced by petrol-driven vehicles.

   1944 November and December, T. F. Cameron, “Motor and Cartage Working”, in Railway Magazine, page 335

   Synonyms: steam lorry