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varactor Definition

☆ va·rac·tor (və rak′tər)

noun

Electronics a semiconductor diode capacitor whose capacitance varies with the voltage applied

Etymology: var(iable) + (re)act(ance) + -or

varactor Usage Examples

Modifies a noun

  • diode: The VCO and synthesizer are built in and do not require external resonators or varactor diodes.