hydrofoil meaning

hydrofoil as a 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

   Type of: device

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

   Type of: speedboat

How to pronounce hydrofoil

hydrofoil is pronounced /ˈhaɪdrəfɔɪl/ in American English. It has 3 syllables, with the stress on the first syllable.