What is another word for internal-combustion engine?
Pronunciation: [ɪntˈɜːnə͡lkəmbˈʌst͡ʃən ˈɛnd͡ʒɪn] (IPA) 
An internal-combustion engine is a type of engine that uses the combustion of fuel to power the engine. Other terms commonly used to describe an internal-combustion engine include combustion engine, petrol engine, gasoline engine, and diesel engine. The term combustion engine is particularly useful when distinguishing between internal-combustion engines and external-combustion engines, such as steam engines or Stirling engines. While petrol and gasoline engines typically refer to engines that run on gasoline, the term diesel engine is reserved for engines that run on diesel fuel. Other less common synonyms for internal-combustion engine include spark ignition engine, compression ignition engine, and reciprocating engine.
