gy·ro·scope
noun/ˈdʒaɪrəskəʊp/
/ˈdʒaɪrəskəʊp/
(also informal gyro
/ˈdʒaɪrəʊ/
/ˈdʒaɪrəʊ/
)- a device consisting of a wheel that turns rapidly inside a frame and does not change position when the frame is moved. Gyroscopes are often used to keep ships and aircraft steady.
陀螺仪；回转仪 Word Originmid 19th cent.: from French, from Greek guros ‘a ring’ + modern Latin scopium, from Greek skopein ‘look at’.