hydro-ski

[ hahy-droh-skee ]
/ ˈhaɪ droʊˌski /

noun, plural hy·dro-skis.

a hydrofoil attached to a seaplane to aid in takeoffs and landings.

Origin of hydro-ski

First recorded in 1950–55

British Dictionary definitions for hydroski

hydroski
/ (ˈhaɪdrəʊˌskiː) /

noun

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