n.
- A diesel engine.
- A vehicle powered by a diesel engine.
- The type of gasoline designed to power a diesel engine.
- To continue running after the ignition has been turned off, as when an open throttle supplies fuel to an engine that is still sufficiently hot to ignite it.
- To drive a diesel-powered vehicle: We dieseled through the countryside.
- To refuel a diesel-powered vehicle. Often used with up.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.