The definition of a diesel is an engine that burns fuel oil, or something powered by this type of engine.
(noun)An example of a diesel is a train that runs on fuel oil.
Diesel is defined as to run after the ignition is off.
(verb)An example of diesel is for a vehicle's engine to continue running even though it has been turned off.
See diesel in Webster's New World College Dictionary
noun
Origin: after R. Diesel (1858-1913), Ger inventor
intransitive verb
See diesel in American Heritage Dictionary 4
noun
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