an aircraft with a hull-shaped fuselage designed to take off and land on water
aircraft whose main body consists of a single hull, or boat, that permits take-off or landing on water.
An aeroplane with a fuselage shaped like a boat. For operation off water.
A seaplane is an aircraft that is designed to take off and alight on water utilising a carriage and pontoons that maintains the fuselage above water level. A flying boat is a type of aircraft which uses its fuselage as a floating hull, supported on the water surface by underwing floats.