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单词 hysteresis
释义 hysteresis
 —hysteretic /his'teuh ret"ik/, hysteresial /his'teuh ree"see euhl/,  adj.   —hysteretically,  adv.  
 /his'teuh ree"sis/, n. Physics.
  1. the lag in response exhibited by a body in reacting to changes in the forces, esp. magnetic forces, affecting it. Cf. magnetic hysteresis.
  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.
 [1795-1805; < Gk hystéresis deficiency, state of being behind or late, hence inferior, equiv. to hystere-, var. s. of hystereîn to come late, lag behind, v. deriv. of hýsteros coming behind + -sis -SIS]
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