diesel engine


Definition of diesel engine

: an internal combustion engine in which air is compressed to a temperature sufficiently high to ignite fuel injected into the cylinder where the combustion and expansion actuate a piston

Examples of diesel engine in a Sentence

Recent Examples on the Web

Automakers expected to make the 2021 goal with a combination of diesel engines — which are 15-20 percent more efficient than gasoline engines — more efficient gasoline engines, and plug-in hybrids. David Mchugh, The Seattle Times, "Climate goals mean Europe will overtake U.S. in electric cars," 2 Oct. 2018 Analysts are wary about falling demand for platinum in diesel engines. Amrith Ramkumar, WSJ, "Palladium Threatens Gold’s Reign as Most Precious Metal," 4 Dec. 2018 Particulate Trap Particulate traps have long been a necessity for diesel engines to meet emissions requirements around the world. Csaba Csere, Car and Driver, "Nine Things You Must Know about the New Mercedes Inline-Six," 20 Mar. 2018 In each instance, today’s diesel engines meet those clean-air requirements more efficiently and with near-zero emissions. WSJ, "Clean Diesel Vehicles Prospering in the U.S.," 15 Jan. 2019 Following that recall, Porsche opted to halt production altogether on its diesel engines, rather than update them to adhere to existing regulations. Andrew Liptak, The Verge, "Porsche says that it will no longer make diesel vehicles," 23 Sep. 2018 Health studies have shown that children who live near heavy traffic, and are exposed to particulate pollution from heavy trucks and diesel engines, develop higher incidences of health problems such as asthma. Patrick Sisson, Curbed, "Your online shopping is polluting this small town," 20 Nov. 2018 Traditionally, ships use diesel engines, gas turbines, or a combination of both. Aditi Shrikant, Vox, "The case against cruises," 15 Nov. 2018 In one way or another, diesel engines have been powering trains for over a century. David Grossman, Popular Mechanics, "First Hydrogen-Powered Trains Rolling in Germany," 19 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diesel engine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of diesel engine

1894, in the meaning defined above

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Statistics for diesel engine

Last Updated

3 Apr 2019

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Time Traveler for diesel engine

The first known use of diesel engine was in 1894

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More Definitions for diesel engine

diesel engine


English Language Learners Definition of diesel engine

: a type of engine that uses diesel fuel rather than gasoline and that is used especially in large vehicles (such as trucks and buses)

diesel engine


Kids Definition of diesel engine

: an engine in which the mixture of air and fuel is compressed until enough heat is created to ignite the mixture that uses diesel fuel instead of gasoline

More from Merriam-Webster on diesel engine

Britannica.com: Encyclopedia article about diesel engine

Comments on diesel engine

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an enemy or opponent

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