gyro(redirected from gyro-)
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Related to gyro-: Gyro compass
i. A device that utilizes the angular momentum of a spinning mass (rotor) to sense the angular motion of its base about one or two axes orthogonal to the spin axis. Also called a gyroscope. This definition does not include more complex systems such as stable platforms using gyros as components.
ii. Short for directional gyro, gyrocompass, etc. See gyrocompass.