Meaning of hydrofoil

hy•dro•foil

Pronunciation: (hī'dru-foil"), [key]
— n.
  1. a surface form creating a thrust against water in a direction perpendicular to the plane approximated by the surface.
    1. a winglike member having this form, designed to lift the hull of a moving vessel.
    2. a vessel equipped with hydrofoils.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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