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1 a) a property of an electric circuit by which an electromotive force is induced in it by a variation of current either in the circuit itself or in a neighboring circuit
b) the measure of this property that is equal to the ratio of the induced electromotive force to the rate of change of the inducing current
2) a circuit or a device possessing inductance
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in·duc·tance (in-dukґtəns) that property of a circuit whereby changing current generates an electromotive force (EMF) in the same or a neighboring circuit; the EMF is proportional to the rate of change of the current and inductance is quantitated as the ratio of these two, in SI units expressed as the henry. It is sometimes used to denote mutual inductance specifically. See also self-inductance.Medical dictionary. 2011.