An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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hysteresis loop
  گردال ِ پسماند  
gerdâl-e pasmând
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.

See also: → hysteresis; → loop.