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cat's whisker

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noun
  1. cat whisker.
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Origin of cat's whisker

First recorded in 1910–15

cat whisker

or cat's whisker

noun
  1. Radio. a stiff wire forming one contact in a crystal detector and used for probing the crystal.
  2. Electronics. any wire for making contact with a semiconductor.
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Origin of cat whisker

First recorded in 1910–15
Also called whisker.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for cat's whisker

cat's whisker

noun
  1. a pointed wire used to make contact with the crystal in a crystal radio receiver
  2. any wire used to make contact with a semiconductor
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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