turbine

noun

tur·​bine ˈtər-bən How to pronounce turbine (audio) -ˌbīn How to pronounce turbine (audio)
: 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

Did you know?

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

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
That is, of course, good news for a company that makes turbines used in generating electricity. Jeff Marks, CNBC, 11 Sep. 2025 New natural gas plants are being delayed until the 2030s because of a 50-month backlog for natural gas turbines, and new nuclear power plants can take more than a decade to get off the ground. Brian Deese, Foreign Affairs, 9 Sep. 2025 However, a commercial reactor will use the same to boil water into steam, which turns a turbine, and generate electricity. Abhishek Bhardwaj, Interesting Engineering, 9 Sep. 2025 The cost of [gas] turbines and equipment has gone up significantly. Alan Ohnsman, Forbes.com, 8 Sep. 2025 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 16 Sep. 2025.

Kids Definition

turbine

noun
tur·​bine ˈtər-bən How to pronounce turbine (audio)
-ˌbīn
: 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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