Illustration of hydrofoil
- hydrofoil 2
hydrofoil
noun
hy·dro·foil
ˈhī-drə-ˌfȯi(-ə)l 
1
: a body similar to an airfoil but designed for action in or on water
2
: a motorboat that has metal plates or fins attached by struts fore and aft for lifting the hull clear of the water as speed is attained
Examples of hydrofoil in a Sentence
Recent Examples on the Web
Both versions employ three hydrofoils that lift the carbon-fiber hull above the water, reducing drag while improving comfort, performance, and efficiency.
—
Michael Verdon, Robb Report, 16 June 2026
He's considered one of the planet’s most versatile watermen, with accolades that include eight-time stand-up paddle world champion, hydrofoil pioneer, and big-wave master.
—Arati Menon, Condé Nast Traveler, 7 June 2026
Candela has tested its hydrofoil technology in Washington, DC, where authorities are purportedly considering using it to transport commuters across the Potomac and Anacostia rivers.
—Jaclyn Trop, Wired News, 5 June 2026
This year, thousands of fans will be floating in spectator boats right beside the race, close enough to feel the spray and hear the hydrofoil.
—Steve Overmyer, CBS News, 27 May 2026
See All Example Sentences for hydrofoil
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Michael Verdon, Robb Report, 16 June 2026
He's considered one of the planet’s most versatile watermen, with accolades that include eight-time stand-up paddle world champion, hydrofoil pioneer, and big-wave master.
—Arati Menon, Condé Nast Traveler, 7 June 2026
Candela has tested its hydrofoil technology in Washington, DC, where authorities are purportedly considering using it to transport commuters across the Potomac and Anacostia rivers.
—Jaclyn Trop, Wired News, 5 June 2026
This year, thousands of fans will be floating in spectator boats right beside the race, close enough to feel the spray and hear the hydrofoil.
—Steve Overmyer, CBS News, 27 May 2026
See All Example Sentences for hydrofoil
Cite this Entry
“Hydrofoil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrofoil. Accessed 19 Jun. 2026.
Copy CitationKids Definition
hydrofoil
noun
hy·dro·foil
ˈhī-drə-ˌfȯil
: a boat that has fins attached to the bottom by braces for lifting the hull clear of the water to allow faster speeds
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