Fr.: cycle d'hystérésis
A closed curve showing the change in magnetic induction of a ferromagnetic body to which an external field is applied as the intensity of this field is varied from +Hs to -Hs and back again, where Hs is the magnetic field intensity corresponding to saturation.
Fr.: perte par hystérésis
Dissipation of energy which occurs, due to magnetic hysteresis, when the magnetic material is subject to changes of magnetization.