Impedance (noun)

1. The opposition offered by a substance or device to the flow of an electric current.
2. The hindrance or opposition to the flow of an alternating current in a circuit, often expressed in terms of resistance, reactance, and phase angle.

Origin:

Derived from the late latin word 'impedīre' meaning 'to hinder', 'impedance' has been in use in english language since late 19th century.

Examples:

1. The impedance of the circuit was measured using a multimeter.
2. The high impedance of the speaker reduced the volume of the audio system.
3. The impedance mismatch between the amplifier and the speaker caused distortion in the sound.
4. The impedance of the battery was tested to determine its capacity.
5. The impedance of the cable was found to be within the specified limits.