airboat

noun

1. A flat-bottomed boat driven by an in-air propeller and used in shallow water.

   “No seats were used yet and the pilot of the airboat stood by the engine and operated the throttle manually. Later, a stick control similar to that used in small aircraft was attached to the rudder ropes.”

   “In keeping with that mission, the law called for the use of airboats in the national park to be phased out.”