follow Dictionary.com

Why turkey has the same name as Turkey

varactor

[vuh-rak-ter] /vəˈræk tər/
noun
1.
a semiconductor diode whose capacitance changes to match applied voltage, used to tune circuits by varying the reactance.
Origin
1955-1960
1955-60; var(iable re)actor
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for varactor
  • The varactor control should be sufficient to maintain phase-lock of the reference.
  • By varying the voltage to the varactor in an oscillator circuit.
  • The voltage drop across the divider is then sensed by a varactor bridge operational amplifier.
  • To hold any discriminator signals until verified by the varactor diode circuits.
British Dictionary definitions for varactor

varactor

/ˈvɛəˌræktə/
noun
1.
a semiconductor diode that acts as a voltage-dependent capacitor, being operated with a reverse bias Compare varistor
Word Origin
C20: probably a blend of variable reactor
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for varactor

Some English speakers likely know this word

Word Value for varactor

0
15
Scrabble Words With Friends

Nearby words for varactor