WordReference Random House Learner's Dictionary of American English © 2019
inˈter•nal-comˈbus•tion ˌen•gine, n. [countable]
  • Automotivean engine in which the process of combustion or the burning of fuel takes place within the engine's cylinders.

  • WordReference Random House Unabridged Dictionary of American English © 2019
    internal-combustion en′gine, 
  • Automotivean engine of one or more working cylinders in which the process of combustion takes place within the cylinders.
    • 1880–85

    Collins Concise English Dictionary © HarperCollins Publishers::

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

    'internal-combustion engine' also found in these entries:

    Forum discussions with the word(s) "internal-combustion engine" in the title:

    Look up "internal-combustion engine" at Merriam-Webster
    Look up "internal-combustion engine" at dictionary.com

    In other languages: Spanish | French | Italian | Portuguese | Romanian | German | Dutch | Swedish | Russian | Polish | Czech | Greek | Turkish | Chinese | Japanese | Korean | Arabic


    Word of the day: fill | kick


    Report an inappropriate ad.