: a rotary engine actuated by the reaction or impulse or both of a current of fluid (such as water, steam, or air) subject to pressure and usually made with a series of curved vanes on a central rotating spindle

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The oldest and simplest form of turbine is the waterwheel, which is made to rotate by water falling across its blades and into buckets suspended from them. Hero of Alexandria invented the first steam-driven turbine in the 1st century A.D., but a commercially practical steam turbine wasn't developed until 1884; steam turbines are now the main elements of electric power stations. Jet engines are gas turbines. A turbojet engine uses a turbine to compress the incoming air that feeds the engine before being ejected to push the plane forward; a turboprop engine uses its exhaust to drive a turbine that spins a propeller. A wind turbine generates electricity by being turned by the wind; the largest now have vanes with a turning diameter of over 400 feet.

Examples of turbine in a Sentence

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As such, keeping in mind that the same turbine can have very different ecological impacts depending on where it is placed and avoiding sensitive areas during planning can considerably reduce risks. Indrabati Lahiri, Forbes.com, 26 July 2026 But manufacturers already producing turbines for other uses are retrofitting now to produce wind energy, even if less efficiently. Doug Ross, Chicago Tribune, 26 July 2026 Unlike the flagship heavy-duty turbines, aeroderivative turbines are, as the name implies, derived from jet engines. Zev Fima, CNBC, 22 July 2026 The tunnel, which is still under construction, is designed to carry water from the nearby Teesta River to a hydropower plant’s turbines, according to the BBC. Gina Kalsi, PEOPLE, 22 July 2026 See All Example Sentences for turbine

Word History

Etymology

French, from Latin turbin-, turbo top, whirlwind, whirl, from turba confusion — more at turbid

First Known Use

1842, in the meaning defined above

Time Traveler
The first known use of turbine was in 1842

Cite this Entry

“Turbine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/turbine. Accessed 28 Jul. 2026.

Kids Definition

turbine

noun
: an engine whose central driving shaft is fitted with a series of blades spun around by the pressure of a fluid (as water, steam, or air)
Etymology

from French turbine "turbine," from Latin turbin-, turbo "top (for spinning), whirlwind"

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