- Naval Architecture. a surface form creating a thrust against water in a direction perpendicular to the plane approximated by the surface.
- a winglike member having this form, designed to lift the hull of a moving vessel.
- a vessel equipped with hydrofoils.
Origin of hydrofoil
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hydrofoil
- a fast light vessel the hull of which is raised out of the water on one or more pairs of fixed vanes
- any of these vanes
Word Origin and History for hydrofoil
Online Etymology Dictionary, © 2010 Douglas Harper