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hydroplane

[hahy-druh-pleyn] /ˈhaɪ drəˌpleɪn/
noun
1.
a seaplane.
2.
an attachment to an airplane enabling it to glide on the water.
3.
a light, high-powered boat, especially one with hydrofoils or a stepped bottom, designed to plane along the surface of the water at very high speeds.
4.
a horizontal rudder for submerging or elevating a submarine.
verb (used without object), hydroplaned, hydroplaning.
5.
to skim over water in the manner of a hydroplane.
6.
to travel in a hydroplane.
7.
Also, aquaplane. (of a vehicular tire or vehicle) to ride on a film of water on a wet surface with a resulting decrease in braking and steering effectiveness.
Origin
1900-1905
1900-05; hydro-1 + plane1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for hydro plane

hydroplane

/ˈhaɪdrəʊˌpleɪn/
noun
1.
a motorboat equipped with hydrofoils or with a shaped bottom that raises its hull out of the water at high speeds
2.
an attachment to an aircraft to enable it to glide along the surface of water
3.
another name (esp US) for a seaplane
4.
a horizontal vane on the hull of a submarine for controlling its vertical motion
verb
5.
(intransitive) (of a boat) to rise out of the water in the manner of a hydroplane
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for hydro plane
hydroplane
1904, coined in Amer.Eng. with sense of "motorboat that glides on the surface of water," from hydro-, comb. form of Gk. hydor "water" + plane (from airplane). The verb is first attested 1914, "to skim the surface of water by use of hydroplanes;" meaning "skid on a thin layer of water" (esp. of automobile tires) first recorded 1962, properly aquaplane (1961 in this sense).
Online Etymology Dictionary, © 2010 Douglas Harper
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