(n) :
a large beam along the underside of a ship's hull from bow to stern; sometimes, a rigid, flat piece of material anchored to the lowest part of the hull of a ship to it greater control and stability
(n) :
a large beam along the underside of a ship's hull from bow to stern; sometimes, a rigid, flat piece of material anchored to the lowest part of the hull of a ship to it greater control and stability