hydrofoil meaning and definition

HYDROFOIL noun

Definition of hydrofoil (noun)

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"
   • synonyms: 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"
   • synonyms: hydroplane