internal-combustion engine 
noun
An engine which generates motive power by the burning of petrol, oil, or other fuel with air inside the engine, the hot gases produced being used to drive a piston or do other work as they expand.The internal-combustion engine has replaced steam-power for agricultural machinery, and improved transport has led to the development of a world market for some agricultural products....
- The previous tech advance started at the end of the 19th century and was due mainly to the development of both the electric motor and the internal-combustion engine.
- The energy bill also includes a new tax credit for buyers of hybrid cars, which combine an electric motor with an internal-combustion engine.
- second nature
- secondo
- second of arc
- second officer
- second position
- second-rate
- second-rater
- second reading
- Second Republic
- second screen
- second sight
- second-sighted
- second-story man
- second strike
- second string
- second teeth
- second thought
- second thoughts
- second to none
- second wind
- Second World
- Second World War
- secrecy
- secret
- secret agent