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cold cathode

noun, Electronics.
a cathode, in an electron tube (cold-cathode tube) or lamp, that emits electrons without having to be heated.
Origin of cold cathode
1925-30 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for cold cathode
  • There are a lot more details in our paper on the cold cathode system for increasing targeting accuracy during radiation therapy.
  • Lit by rare cold cathode technology, not neon, it's one of a kind and a spectacular sight at night.
  • Our novel approach is based on a novel high current cold cathode and a tunable resonant cavity.
  • Farnsworth also invented the first cold cathode ray tubes and the first simple electronic microscope.
British Dictionary definitions for cold cathode

cold cathode

(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
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