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varactor

[ vuh-rak-ter ]

noun

  1. a semiconductor diode whose capacitance changes to match applied voltage, used to tune circuits by varying the reactance.

varactor

/ ˈvɛəˌræktə /

noun

  1. a semiconductor diode that acts as a voltage-dependent capacitor, being operated with a reverse bias Compare varistor

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Word History and Origins

Origin of varactor1

1955–60; var(iable re)actor

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Word History and Origins

Origin of varactor1

C20: probably a blend of variable reactor

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