Definition of impedance noun from the Oxford Advanced Learner's Dictionary

 

impedance

 noun
noun
BrE BrE//ɪmˈpiːdns//
 
; NAmE NAmE//ɪmˈpiːdns//
 
[uncountable](physics)
 
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a measurement of the total resistance of a piece of electrical equipment, etc. to the flow of an alternating current
See the Oxford Advanced American Dictionary entry: impedance