diesel engine

noun
Updated on: 14 Nov 2017

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

Recent Examples of diesel engine from the Web

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.

First Known Use of diesel engine

1894


DIESEL ENGINE Defined for English Language Learners

diesel engine

noun

Definition of diesel engine for English Language Learners

  • : 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 Defined for Kids

diesel engine

noun

Definition of diesel engine for Students

: 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

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