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internal-combustion engine

American  

noun

  1. an engine of one or more working cylinders in which the process of combustion takes place within the cylinders.


internal-combustion engine British  

noun

  1. a heat engine in which heat is supplied by burning the fuel in the working fluid (usually air)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

internal-combustion engine Scientific  
/ ĭn-tûrnəl-kəm-bŭschən /
  1. An engine whose fuel is burned inside the engine itself rather than in an outside furnace or burner. Gasoline and diesel engines are internal-combustion engines, as are gas turbine engines such as turbojets.

  2. Compare steam engine


internal-combustion engine Cultural  
  1. Any engine powered by burning fuel inside it (for example, a standard automobile engine). Internal-combustion engines normally burn fossil fuels and therefore are a major source of air pollution. (See smog.)


Etymology

Origin of internal-combustion engine

First recorded in 1880–85

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 company now says it will buy more internal-combustion engine vehicles, citing weaker demand and higher operating costs for E.V.s.

From New York Times

The state’s plan to ban sales of new internal-combustion engine vehicles by 2035, approved by regulators on Thursday, sets strict limits on what automakers can and can’t sell.

From New York Times

That would make it impossible to sell internal-combustion engine cars.

From Reuters

Some automakers have added artificial sounds to account for the absence of a growling internal-combustion engine — but Maserati said it won’t go that same route.

From The Verge

The thyroid is like the carburetor in an old internal-combustion engine.

From New York Times