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discriminator

[dih-skrim-uh-ney-ter]
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noun
  1. a person or thing that discriminates.
  2. Electronics. a circuit in which the output is a function of some variation of an input signal from a fixed characteristic.
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Origin of discriminator

From Late Latin, dating back to 1820–30; see origin at discriminate, -tor
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for discriminator

discriminator

noun
  1. an electronic circuit that converts a frequency or phase modulation into an amplitude modulation for subsequent demodulation
  2. an electronic circuit that has an output voltage only when the amplitude of the input pulses exceeds a predetermined value
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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