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hydro-ski

[hahy-droh-skee]
noun, plural hy·dro-skis.
  1. a hydrofoil attached to a seaplane to aid in takeoffs and landings.

Origin of hydro-ski

First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for hydroski

hydroski

noun
  1. a hydrofoil used on some seaplanes to provide extra lift when taking off
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