Definition of diesel noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈdiːzl//
    ; NAmE NAmE//ˈdiːzl//
    The power industry
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  1. 1(also diesel fuel, diesel oil) [uncountable] a type of heavy oil used as a fuel instead of petrol/gas a diesel engine (= one that burns diesel) diesel cars/locomotives/trains compare petrol
  2. 2 [countable] a vehicle that uses diesel fuel Our new car is a diesel. See related entries: The power industry
  3. Word Originlate 19th cent.: named after R. Diesel (1858-1913), the inventor of the diesel engine .Extra examples The diesel model is slightly more expensive. These buses run on diesel. It’s one of the best diesel cars you can buy. Nearly 300 litres of diesel oil were spilt in the river. The diesel engine burns its fuel much more efficiently.
See the Oxford Advanced American Dictionary entry: diesel