hydrofoil

American  

[hahy-druh-foil] / ˈhaɪ drəˌfɔɪl /

noun

1. Naval Architecture. a surface form creating a thrust against water in a direction perpendicular to the plane approximated by the surface.

2. Nautical.

   1. a winglike member having this form, designed to lift the hull of a moving vessel.

   2. a vessel equipped with hydrofoils.

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hydrofoil British  

/ ˈhaɪdrəˌfɔɪl /

noun

1. a fast light vessel the hull of which is raised out of the water on one or more pairs of fixed vanes

2. any of these vanes

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Etymology

Origin of hydrofoil

First recorded in 1915–20; hydro- ¹ + foil ²

Example Sentences

A Washington state transit agency is working on its own hydrofoil electric ferry design in Puget Sound.

From Los Angeles Times

The way the IOC explains the difference is that “instead of floating, the board appears to fly” in the iQFoil class because of hydrofoils that lift the board out of the water at certain speeds.

From BBC

If you can catch the hydrofoil out to Iki Island, it’s well worth it.

From Seattle Times

It achieves this with carbon fiber hydrofoil wings that lift the boat out of the water, reducing drag.

From Seattle Times

For the next six days, Candela intends to showcase its pioneering hydrofoil technology in the U.S.

From Washington Times