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hysteresis

[his-tuh-ree-sis] /ˌhɪs təˈri sɪs/
noun, Physics.
1.
the lag in response exhibited by a body in reacting to changes in the forces, especially magnetic forces, affecting it.
2.
the phenomenon exhibited by a system, often a ferromagnetic or imperfectly elastic material, in which the reaction of the system to changes is dependent upon its past reactions to change.
Origin
1795-1805
1795-1805; < Greek hystérēsis deficiency, state of being behind or late, hence inferior, equivalent to hysterē-, variant stem of hystereîn to come late, lag behind, verbal derivative of hýsteros coming behind + -sis -sis
Related forms
hysteretic
[his-tuh-ret-ik] /ˌhɪs təˈrɛt ɪk/ (Show IPA),
hysteresial
[his-tuh-ree-see-uh l] /ˌhɪs təˈri si əl/ (Show IPA),
adjective
hysteretically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for hysteresis
  • Insects, however, may practice hysteresis even more effectively.
  • Everyone knows that climate has hysteresis, so that summer drags into fall, and winter drags into spring.
  • Many know that trees add to the hysteresis, and that is why trees tend to drop their leaves together.
  • There's some hysteresis in people's psychological response.
British Dictionary definitions for hysteresis

hysteresis

/ˌhɪstəˈriːsɪs/
noun
1.
(physics) the lag in a variable property of a system with respect to the effect producing it as this effect varies, esp the phenomenon in which the magnetic flux density of a ferromagnetic material lags behind the changing external magnetic field strength
Derived Forms
hysteretic (ˌhɪstəˈrɛtɪk) adjective
hysteretically, adverb
Word Origin
C19: from Greek husterēsis coming late, from husteros coming after
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for hysteresis
n.

1805, from Greek hysteresis "a coming short, a deficiency."

Online Etymology Dictionary, © 2010 Douglas Harper
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hysteresis in Medicine

hysteresis hys·ter·e·sis (hĭs'tə-rē'sĭs)
n. pl. hys·ter·e·ses (-sēz)
The lagging of an effect behind its cause, as when the change in magnetism of a body lags behind changes in the magnetic field.


hys'ter·et'ic (-rět'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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hysteresis in Science
hysteresis
  (hĭs'tə-rē'sĭs)   
The dependence of the state of a system on the history of its state. For example, the magnetization of a material such as iron depends not only on the magnetic field it is exposed to but on previous exposures to magnetic fields. This "memory" of previous exposure to magnetism is the working principle in audio tape and hard disk devices. Deformations in the shape of substances that last after the deforming force has been removed, as well as phenomena such as supercooling, are examples of hysteresis.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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