HyperDic: cold_cathode

English > 1 sense of the expression cold cathode:
NOUNartifactcold cathodea cathode that is a source of electrons without being heated
English > cold cathode: 1 sense > noun 1, artifact
MeaningA cathode that is a source of electrons without being heated.
BroadercathodeA negatively charged electrode that is the source of electrons entering an electrical device

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