from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A gyroscope consisting of a rotating wheel in a rigid case.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A gyroscope fixed within a rigid case

from the GNU version of the Collaborative International Dictionary of English

  • n. A modification of the gyroscope, consisting essentially of a fly wheel fixed inside a rigid case to which is attached a thin flange of metal for supporting the instrument. It is used in studying the dynamics of rotating bodies.

from The Century Dictionary and Cyclopedia

  • n. An instrument for illustrating the dynamics of rotation, composed of a box or case having a sharp bearing-edge in the form of a regular polygon, and containing a fly-wheel having its center and its direction of rotation in the plane of the bearing-edge.


Sorry, no etymologies found.


  • In Fig. 2 the hooked rods are connected one to each of two opposite corners of a four-sided jointed frame, each member of which carries a gyrostat so that the axis of rotation of the fly-wheel is in the axis of the member of the frame which bears it.

    Scientific American Supplement, No. 460, October 25, 1884

  • What's the matter with my home-made gyrostat and anemometer?

    Darkness and Dawn

  • Each of the hooked rods in Fig. 2 is connected to the framework through a swivel joint, so that the whole gyrostatic framework may be rotated about the axis of the hooked rods in order to annul the moment of momentum of the framework about this axis due to rotation of the fly-wheels in the gyrostat.] [Illustration: FIG.

    Scientific American Supplement, No. 460, October 25, 1884


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