/ ˈdʒaɪrəskəʊp; NAmE -skoʊp/ (also informal gyro / ˈdʒaɪrəʊ; NAmE -roʊ/) noun
a device consisting of a wheel that spins rapidly inside a frame and does not change position when the frame is moved. Gyroscopes are often used to keep ships and aircraft steady.
► gyro·scop·ic / ˌdʒaɪrəˈskɒpɪk; NAmE -ˈskɑːpɪk/ adjective
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WORD ORIGIN
mid 19th cent.: from French , from Greek guros a ring + modern Latin scopium , from Greek skopein look at.