diesel
1 Americanadjective
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noting a machine or vehicle powered by a diesel engine.
diesel locomotive.
-
of or relating to a diesel engine.
diesel fuel.
noun
-
a vehicle powered by a diesel engine.
noun
noun
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See diesel engine
-
a ship, locomotive, lorry, etc, driven by a diesel engine
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informal short for diesel oil
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slang any cola drink
spook and diesel
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See suck
noun
Etymology
Origin of diesel
After R. Diesel, the engine's inventor
Explanation
A diesel is a type of engine that produces enough heat to burn fuel and power a vehicle. Most diesels run on very thick, heavy oil. Large trucks use diesels — also known as diesel engines — and so do some cars, trains, and ships. The earliest diesel was developed in the late 19th century, and its invention is credited to the German engineer Rudolph Diesel, although other inventors laid the groundwork with their development of a very similar type of engine.
Vocabulary lists containing diesel
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The EU last year scrapped a landmark ban on new petrol and diesel cars set to come into effect in 2035, and India has set a 50-year timeline for transitioning to electric vehicles.
From Barron's • May 19, 2026
The government says it has run out of diesel and fuel oil needed to power the generators that supplement the electricity production of its dilapidated power plants.
From Barron's • May 18, 2026
The swelling shipments have brought stocks of diesel and other fuels on the Gulf Coast down by nearly 19% from prewar levels, according to the EIA.
From The Wall Street Journal • May 18, 2026
It also might emerge in visible diesel shortages or from renewed attacks on Persian Gulf infrastructure.
From MarketWatch • May 18, 2026
I have only the haziest recollection of waving at my mother and sister in a rising cloud of diesel exhaust and mosquitoes as they began their slow, permanent exodus from the Congo.
From "The Poisonwood Bible" by Barbara Kingsolver
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.