impedance.

The combined resistive and reactive opposition a circuit presents to alternating current.

Use it for

Words that belong together

• electrical impedance
• impedance mismatch

On the page

An impedance mismatch weakened the signal.

The technician measured the cable’s impedance.

Usage notes

Primary category: sci-fi. Forms: Usually uncountable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.