a term used in plasma research for the circular motion of ions and electrons around magnetic field lines
a single complete turn (axial or orbital); "the plane made three rotations before it crashed"; "the revolution of the earth about the sun takes one year"
to wind or move in a spiral course; "the muscles and nerves of his fine drawn body were coiling for action"; "black smoke coiling up into the sky"; "the young people gyrated on the dance floor"
If you gyrate, you dance or move your body quickly with circular movements. The woman began to gyrate to the music. a room stuffed full of gasping, gyrating bodies. + gyration gyrations gy·ra·tion Prince continued his enthusiastic gyrations on stage
verb The "pumping" motion a skater makes, usually on a ramp, to propel himself up the transitions and to gain speed By moving body weight in one direction and then the other in conjunction with the curve and flat of the ramp, enough speed can be achieved to perform any trick This motion is much like that used by a person in a playground swing-set
If things such as prices or currencies gyrate, they move up and down in a rapid and uncontrolled way. Interest rates began to gyrate up towards 20 per cent in 1980 and then down and up again. + gyration gy·ra·tion the gyrations of the currency markets
The radius of gyration of an object is defined as if all the mass of the object were concentrated at a specific distance from the axis; it would have the same moment of inertia as the original object The moment of inertia of any object can be written in terms of its radius of gyration as, I = Mk²