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See also: hystérésis



Coined by Sir James Alfred Ewing from Ancient Greek ὑστέρησις (hustérēsis, shortcoming), from ὑστερέω (husteréō, I am late, fall short), from ὕστερος (hústeros, later). [1]


English Wikipedia has an article on:

hysteresis (countable and uncountable, plural hystereses)

  1. A property of a system such that an output value is not a strict function of the corresponding input, but also incorporates some lag, delay, or history dependence, and in particular when the response for a decrease in the input variable is different from the response for an increase. For example, a thermostat with a nominal setpoint of 75° might switch the controlled heat source on when the temperature drops below 74°, and off when it rises above 76°.
  2. Magnetic friction in dynamos, by which every reversal of magnetism in the iron causes dissipation of energy.

Derived terms[edit]



  1. ^ What's Hysteresis, from James P. Sethna at Cornell University.