Cathode
Definition & Meaning
Pronunciation /ˈkæθ.oʊd/ · Part of speech noun
Quick meaning: Cathode is a noun meaning (electronics) The electrode from which electrons are emitted into a vacuum tube or gas-filled tube.
Meaning
(electronics) The electrode from which electrons are emitted into a vacuum tube or gas-filled tube.
More Meanings
- (electronics) That electrode of a semiconductor device which is connected to the n-type material of a p-n junction.
- (by extension) The electrode at which chemical reduction of cations takes place, usually resulting in the deposition of metal onto the electrode.
- (electricity) An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows outwards (and thus, electrons flow inwards). It can have either a negative or a positive voltage with respect to anode of the same polarized device (depending on whether the device is a load or a source, respectively).
Word Forms
- cathodes
Antonyms for cathode
Common opposites include anode.
Related Words
Related dictionary entries include anode, heater, screen, cs, cath, cathodegraph.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
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