1. hydrofoil - Noun
2. hydrofoil - Verb
a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through
a speedboat that is equipped with winglike structures that lift it so that it skims the water at high speeds
Source: WordNetthe fins of a fish act as hydrofoils Source: Internet
the museum houses a replica of the jet hydroplane that broke the record Source: Internet
Bell and assistant Frederick W. "Casey" Baldwin began hydrofoil experimentation in the summer of 1908 as a possible aid to airplane takeoff from water. Source: Internet
Baldwin studied the work of the Italian inventor Enrico Forlanini and began testing models based on those designs, which led to the development of hydrofoil watercraft. Source: Internet
In the early 1950s an English couple built the White Hawk, a jet-powered hydrofoil water craft, in an attempt to beat the absolute water speed record. Source: Internet
During the same period the Soviet Union experimented extensively with hydrofoils, constructing hydrofoil river boats and ferries with streamlined designs during the cold war period and into the 1980s. Source: Internet