propulsion
noun
pro·pul·sion
prə-ˈpəl-shən 
1
: the action or process of propelling
2
: something that propels
Examples of propulsion in a Sentence
Sailboats use wind as their source of propulsion.
Recent Examples on the Web
However, numerous tests of Starliner's propulsion system in space and on the ground failed to convince NASA managers that more problems would not develop during the spacecraft's return to Earth.
—
Stephen Clark, Ars Technica, 4 Feb. 2025
As for cruising the seas, the project gets its juice from an advanced diesel-electric propulsion system powered by electric Azipods; this significantly reduces emissions and fuel consumption, according to Kitson.
—Nicole Hoey, Robb Report, 4 Feb. 2025
But the flight was marred by propellant leaks and pressurization problems with the Starliner's propulsion system.
—William Harwood, CBS News, 28 Jan. 2025
Hence an electric propulsion system is also referred to as an ion engine.
—Keith Cooper, Space.com, 25 Jan. 2025
See all Example Sentences for propulsion 
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Stephen Clark, Ars Technica, 4 Feb. 2025
As for cruising the seas, the project gets its juice from an advanced diesel-electric propulsion system powered by electric Azipods; this significantly reduces emissions and fuel consumption, according to Kitson.
—Nicole Hoey, Robb Report, 4 Feb. 2025
But the flight was marred by propellant leaks and pressurization problems with the Starliner's propulsion system.
—William Harwood, CBS News, 28 Jan. 2025
Hence an electric propulsion system is also referred to as an ion engine.
—Keith Cooper, Space.com, 25 Jan. 2025
See all Example Sentences for propulsion
Dictionary Entries Near propulsion
Cite this Entry
“Propulsion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/propulsion. Accessed 11 Feb. 2025.
Copy CitationKids Definition
propulsion
noun
pro·pul·sion
prə-ˈpəl-shən
1
: the action or process of propelling
2
: something that propels
propulsive
adjective
-ˈpəl-siv
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