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A device consisting of a spinning mass, typically a disk or wheel, usually mounted on a gimbal so that its axis can turn freely in one or more directions and thereby maintain its orientation regardless of any movement of the base.

gy′ro·scop′ic (-skŏp′ĭk) adj.
gy′ro·scop′i·cal·ly adv.


(ˈdʒaɪrəˌskəʊp) or


(General Physics) 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
gyroscopic adj
ˌgyroˈscopically adv
ˌgyroˈscopics n


(ˈdʒaɪ rəˌskoʊp)

an apparatus consisting of a rotating wheel so mounted that its axis can turn freely in certain or all directions, capable of maintaining the same absolute direction in space in spite of movements of the mountings: used to maintain equilibrium and to determine direction.
[1855–60; < French; see gyro-, -scope]
gy`ro•scop′ic (-ˈskɒp ɪk) adj.
gy`ro•scop′i•cal•ly, adv.


An instrument consisting of a disk or wheel that spins rapidly about an axis like a top. The spinning motion keeps the axis fixed even if the base is turned in any direction, making the gyroscope an accurate navigational instrument and an effective stabilizing device in ships and airplanes.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gyroscope - rotating mechanism in the form of a universally mounted spinning wheel that offers resistance to turns in any directiongyroscope - rotating mechanism in the form of a universally mounted spinning wheel that offers resistance to turns in any direction
gyrocompass - a compass that does not depend on magnetism but uses a gyroscope instead
gyrostabiliser, gyrostabilizer - a stabilizer consisting of a heavy gyroscope that spins on a vertical axis; reduces side-to-side rolling of a ship or plane
rotating mechanism - a mechanism that rotates
References in classic literature ?
"So I have been working out a sort of modified gyroscope, and it seems to answer the purpose.
'To "GYRE" is to go round and round like a gyroscope. To "GIMBLE" is to make holes like a gimlet.'
He was a gyroscope of blows, a whirlwind of destruction.
"Suppose the gyroscope stopped!" Few of them anticipated a tithe of what the Brennan mono-rail would do for their railway securities and the face of the world.
Engineers and scientists who have worked on the manufacture of high-performance fiber optic gyroscopes for many applications from as early as 1977 to the present survey the field during its 40-year and its status today.
High Speed Outputs Expand MEMS Options for Inertial Measurement Units, INS/GPS and Gyroscopes. With output speeds reaching 10 kHz and message timing as low as 185 [micro]sec, Gladiator Technologies' MEMS IMUs with VELOX Processing are the clear choice for inertial engineers requiring high performance at an affordable price.
Gyroscopes are needed to keep Hubble pointing in the right direction as it operates 340 miles (545km) above Earth.
Gyroscopes are devices that help vehicles, drones, and wearable and handheld electronic devices know their orientation in three-dimensional space.
5 one of the space telescope's gyroscopes (gyro) started spinning too fast.
To carry out their main functions, most of these devices are equipped with built-in acceleration sensors (accelerometers), which are often combined with rotation sensors (gyroscopes) for step counting and identifying the user's current position.
People familiar with the matter told Upmedia that the National Chung-Shan Institute of Science and Technology (NCSIST) was looking for procurement of more than 600 sets of ring laser gyroscopes (RLG) and control panel components from the United States, with the purchase believed to be preparing for mass production of the country's self-developed extended-range version of the Hsiung Feng IIE, a surface-to-surface cruise missile, and of the Cloud Peak medium-range missile.
Mouser Electronics, Inc., the authorized global distributor with the newest semiconductors and electronic components, announces a global distribution agreement with Tronics Microsystems, a TDK Group company that designs and manufactures innovative nano and microsystems, to distribute the company's high-performance accelerometers, gyroscopes and sensor evaluation kits.