internal combustion engine

noun
Updated on: 15 Nov 2017

Definition of internal combustion engine

:a heat engine in which the combustion that generates the heat takes place inside the engine proper instead of in a furnace

Recent Examples of internal combustion engine from the Web

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

First Known Use of internal combustion engine

1884


INTERNAL COMBUSTION ENGINE Defined for English Language Learners

internal combustion engine

noun

Definition of internal combustion engine for English Language Learners

  • : a type of engine that is used for most vehicles : an engine in which the fuel is burned within engine cylinders


Seen and Heard

What made you want to look up internal combustion engine? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to buzz or drone

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!