diesel engine

noun3

1. •
   An internal combustion engine of piston engine type that operates using the Diesel cycle, with diesel fuel being sprayed into the hot, high-pressure air in the combustion chamber at the end of the compression stroke.

   • Two Voith-North British hydraulic transmissions are fitted, each connected through a Hardy Spicer cardan shaft to its appropriate diesel engine. — 1958
2. •
   Such an engine that burns diesel (diesel fuel).
3. •
   a diesel locomotive.