steam engine

noun

1. an engine worked by steam, typically one in which a sliding piston in a cylinder is moved by the expansive action of the steam generated in a boiler.

steam-engine

noun

1. an engine that uses the thermal energy of steam to produce mechanical work, esp one in which steam from a boiler is expanded in a cylinder to drive a reciprocating piston

steam engine

1. An engine in which the energy of hot steam is converted into mechanical power, especially an engine in which the force of expanding steam is used to drive one or more pistons. The source of the steam is typically external to the part of the machine that converts the steam energy into mechanical energy.

2. Compare internal-combustion engine

Other Word Forms

• steam-engine adjective

Word History and Origins

Origin of steam engine¹

First recorded in 1745–55

Example Sentences

She screeched like the brakes of a Bloomer steam engine pulling into the station.

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Beowulf said, confused, for the shape was fairly stout, although, to be fair, not nearly as stout as a steam engine would be, and of course there were no train tracks running along the path.

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The Americans are not using a steam engine to operate their turning machine, as far as I can tell.

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He highlighted an example from history - James Watt is synonymous with the steam engine, even though he improved it rather than invented it.

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The whistle of a train interrupts the tourist chatter, and a steam engine pulling a long line of freight carriages slowly chugs across the railway bridge from Russia to North Korea.

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