Longman Dictionary of Contemporary English homepage

Date: 1900-2000
Origin: hydro- + foil, on the model of airfoil

hydrofoil

noun
     
Related topics: Water
hy‧dro‧foil [countable]
TTW a large boat with wing-shaped parts on the bottom that lift it above the surface of the water when it travels fast [↪ hovercraft]

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