precession

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precession

[-sesh′ən]
Etymology: L, praecedere, to go before
a comparatively slow gyration of the axis of a spinning body such that the axis traces out a cone, caused by the application of a torque. The magnetic moment of a nucleus with spin experiences such a torque when inclined at an angle to an applied magnetic field, resulting in precession at the Larmor frequency.

precession

An MRI term for the relatively slow gyration of the axis of a spinning body, which traces out a conical configuration. Precision is caused by the application of a torque which tends to change the direction of the rotation axis and is continuously directed at right angles to the plane of the torque. The magnetic moment of a nucleus with spin will experience such a torque when inclined at an angle to the magnetic field, resulting in precession at the Larmor frequency.

pre·ces·sion

(prē-sesh'ŭn)
The secondary spin of magnetic movements around the main magnetic field.
References in periodicals archive ?
Asteroid PRO provides the orbital elements precessed to the date of observation as well as the asteroid's position in the sky, daily motion, magnitude, angular diameter, and distance.
Finally, I reran my program for a latitude of 31 |degrees~ north with the stellar positions precessed back to A.
Because the galaxy was not perfectly spheroidal, the dusty disk was subjected to gravitational torques that precessed and twisted it over a billion years or so into its present shape.