antirolling gyroscope

antirolling gyroscope

[¦an·tē¦rōl·iŋ ′jī·rə‚skōp]
(naval architecture)
A very large gyroscope having a vertical axis and mounted in a ship so that the axis can be tipped fore and aft by an electric motor, resulting in the gyroscope's exerting a large torque on the ship about the fore-and-aft axis.