cold cathode


noun Electronics.

a cathode, in an electron tube (cold-cathode tube) or lamp, that emits electrons without having to be heated.

Nearby words

  1. cold agglutination,
  2. cold agglutinin,
  3. cold brew,
  4. cold call,
  5. cold cash,
  6. cold cellar,
  7. cold chisel,
  8. cold color,
  9. cold comfort,
  10. cold cream

Origin of cold cathode

First recorded in 1925–30

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for cold cathode

cold cathode

noun

electronics a cathode from which electrons are emitted at ambient temperature, due to a high potential gradient at the surface
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