hydrofoil
n 1: 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; "the fins of a fish act as hydrofoils"
[syn: {hydrofoil}, {foil}]
2: a speedboat that is equipped with winglike structures that
lift it so that it skims the water at high speeds; "the
museum houses a replica of the jet hydroplane that broke the
record" [syn: {hydrofoil}, {hydroplane}]