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Noun: internal-combustion engine
  1. A heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine
    "Most cars run on internal-combustion engines";
    - ICE

Derived forms: internal-combustion engines

Type of: heat engine

Part of: automotive vehicle, motor vehicle, motorboat, powerboat

Encyclopedia: Internal-combustion engine