A gyroscope is a device that contains a disc turning on an axis that can turn freely in any direction, so that the disc maintains thesame position whatever the position or movement of the surrounding structure.
gyroscope in British English
(ˈdʒaɪrəˌskəʊp) or gyrostat (ˈdʒaɪrəˌstæt)
noun
a device containing a disc rotating on an axis that can turn freely in any direction so that the disc resists the action of an applied couple and tends to maintain the same orientation in space irrespective of the movement of the surrounding structure
Sometimes shortened to: gyro
Derived forms
gyroscopic (ˌdʒaɪrəˈskɒpɪk)
adjective
gyroscopically (ˌgyroˈscopically)
adverb
gyroscopics (ˌgyroˈscopics)
noun
gyroscope in American English
(ˈdʒaɪroʊˌskoʊp; ˈdʒaɪrəˌskoʊp)
noun
a wheel mounted in a set of rings so that its axis of rotation is free to turn in any direction: when the wheel is spun rapidly, it will keep the original direction of its rotation axis no matter which way the ring is turned: gyroscopes are used in gyrocompasses and to keep moving ships, airplanes, etc. level