cat whisker

or cat's whisker

  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.

Origin of cat whisker

First recorded in 1910–15

Words Nearby cat whisker Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use cat whisker in a sentence

  • The free end of the cat-whisker wire is then adjusted so that it will rest lightly on the exposed part of the galena.

    The Radio Amateur's Hand Book | A. Frederick Collins