hydrofoil

noun

hy·​dro·​foil ˈhī-drə-ˌfȯi(-ə)l How to pronounce hydrofoil (audio)
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

Illustration of hydrofoil

Illustration of hydrofoil
  • hydrofoil 2

Examples of hydrofoil 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.
Salzmann and Podlipnik started by gradually adapting the concept of a hydrofoil to this very different use case. New Atlas, 5 Nov. 2024 This innovative craft combines elements of boats, hydrofoils and aircraft to create a unique and efficient mode of transport. Kurt Knutsson, Cyberguy Report, Fox News, 20 Sep. 2024 But a hydrofoil system can pull the seaglider up out of the water for a low-drag, high-efficiency path to takeoff, and the ground effect can radically boost range during flight. New Atlas, 9 Sep. 2024 Flashy gold hydrofoils, a 27-knot top speed, and a record-breaking range of 420 nautical miles (with DC charging) are all part of the $450,000 package. Julia Zaltzman, Robb Report, 8 Aug. 2024 See all Example Sentences for hydrofoil 

Word History

First Known Use

1919, in the meaning defined at sense 1

Time Traveler
The first known use of hydrofoil was in 1919

Dictionary Entries Near hydrofoil

Cite this Entry

“Hydrofoil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrofoil. Accessed 3 Dec. 2024.

Kids Definition

hydrofoil

noun
hy·​dro·​foil ˈhī-drə-ˌfȯil How to pronounce hydrofoil (audio)
: a boat that has fins attached to the bottom by braces for lifting the hull clear of the water to allow faster speeds

More from Merriam-Webster on hydrofoil

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