noun
jetfoil
A type of high-speed passenger ferry that uses water jet propulsion and hydrofoils. The term is a trademark, but commonly used generically in Japanese.
東京から伊豆諸島へジェットフォイルで行けます。
You can go from Tokyo to the Izu Islands by jetfoil.
Generic term for hydrofoil vessel; ジェットフォイル specifically refers to a Boeing/Kawasaki jetfoil or similar high-speed passenger craft.
Borrowed from English 'jetfoil', originally a trademark for a Boeing hydrofoil design.