Meaning of Larmor precession

Lar'mor preces"sion

Pronunciation: (lär'môr), [key]
— Physics. Physics.
  1. the precession of charged particles, as electrons, placed in a magnetic field, the frequency of the precession being equal to the electronic charge times the strength of the magnetic field divided by 4&pgr; times the mass.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.