What is the term for the inverse of impedance?

Impedance is the total opposition to alternating current (AC), combining both resistance and reactance. The mathematical inverse, or reciprocal, of impedance is called admittance. While impedance measures how much a circuit resists AC flow, admittance measures how easily a circuit permits AC to flow. The distractors represent the inverses of other specific electrical properties. Conductance is the inverse of resistance alone, while susceptance is the inverse of reactance alone. Reluctance is the opposition to magnetic flux, which is conceptually unrelated to the inverse of AC impedance.