(shipbuilding) the point of intersection between two vertical lines, one line through the center of buoyancy of the hull of a ship in equilibrium and the other line through the center of buoyancy of the hull when the ship is inclined to one side; the distance of this intersection above the center of gravity is an indication of the stability of the ship

（造船）船体が平衡状態にあるときの浮力の中心を通る1本の垂直線と、船体が一方に傾いたときの浮力の中心を通るもう1本の垂直線の交点；この交点が重心より上方にある距離は、船の安定性の指標となる