Definition of: hydroplane

(hī′drə·plān) noun
1. An airplane constructed for alighting upon or rising from the water: also called hydroairplane.
2. A motorboat of extremely light construction driven either by submerged screws or by aerial propellers.
3. A hydrofoil.
—v.i. ·planed, ·plan·ing
1. To move on water at a speed sufficient to give support through hydrodynamic and aerodynamic forces alone.
2. To drive or ride in a hydroplane.