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impedance

noun
/ɪmˈpiːdn̩s/UK/ɪmˈpidn̩s/CA/ɪmˈpiːdn̩s/

Etymology

From impede + -ance. In sense 2 and sense 3 it was coined by English mathematician and physicist Oliver Heaviside in 1886.

  1. borrowed from impediō
  2. suffixed as impedance — “impede + ance”

Definitions

  1. The act of impeding

    The act of impeding; that which impedes; a hindrance.

    • Faithful yielding is therefore a display of love before God by preparing to respond to his Call to Arms, even though He may not send us into the front lines of battle if some disability or impedance of Satan prevents us from action […]

  2. A measure of the opposition to the flow of an alternating current in a circuit

    A measure of the opposition to the flow of an alternating current in a circuit; the aggregation of its resistance, and inductive and capacitive reactances; the ratio of voltage to current treated as complex quantities.

  3. A quantity analogous to electrical impedance in some other energy domain

The neighborhood

Derived

acoustic impedance, bioimpedance, cardioimpedance, characteristic impedance, electrical impedance tomography, image impedance, immittance, impedance coil, impedancemetry, impedance mismatch, impedance of free space, impedance plethysmography, magnetoimpedance, microimpedance, photoimpedance, radiation impedance, tuboimpedance

Vish — recursive loop

No curated loop yet for impedance. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA