cold cathode

cold cathode

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

Origin:
1925–30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Cold cathode is always a great word to know.
So is resistor-capacitor circuits. Does it mean:
electric circuit comprised of resistors and capacitors driven by voltage or current source
root mean square value
Collins
World English Dictionary
cold cathode
 
n
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 10th Edition
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