1
: the electrode of an electrochemical cell at which reduction occurs:
a
: the negative terminal of an electrolytic cell
b
: the positive terminal of a galvanic cell
2
: the electron-emitting electrode of an electron tube
broadly
: the negative electrode of a diode compare anode
cathodally
adverb
Examples of cathode in a Sentence
Recent Examples on the Web
This year, to stave off a financing crunch, Northvolt announced a retrenchment, scrapping two cathode material production facilities in Sweden, shuttering a research and development subsidiary in California and seeking out new investors for a project in Poland.
—
Shawn Tully, Fortune Europe, 10 Oct. 2024
The battery’s anode and cathode store lithium, and they are connected by an electrolyte, a liquid chemical that passes lithium ions between the two to store or release energy.
—Aarian Marshall, WIRED, 15 Sep. 2024
Fast lithium ion transfer is ensured by a fast ion conductor coating on the cathode, fast-charging graphite and novel nano-coating technologies for the anode, multi-gradient layered electrode design, and ultra-high conductivity electrolyte formulation.
—New Atlas, 24 Oct. 2024
But outside of those two efforts, there's almost nothing happening on the cathode.
—Amy Feldman, Forbes, 21 Oct. 2024
See all Example Sentences for cathode 
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Shawn Tully, Fortune Europe, 10 Oct. 2024
The battery’s anode and cathode store lithium, and they are connected by an electrolyte, a liquid chemical that passes lithium ions between the two to store or release energy.
—Aarian Marshall, WIRED, 15 Sep. 2024
Fast lithium ion transfer is ensured by a fast ion conductor coating on the cathode, fast-charging graphite and novel nano-coating technologies for the anode, multi-gradient layered electrode design, and ultra-high conductivity electrolyte formulation.
—New Atlas, 24 Oct. 2024
But outside of those two efforts, there's almost nothing happening on the cathode.
—Amy Feldman, Forbes, 21 Oct. 2024
See all Example Sentences for cathode
Dictionary Entries Near cathode
Cite this Entry
“Cathode.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cathode. Accessed 28 Nov. 2024.
Copy CitationKids Definition
cathode
noun
cath·ode
ˈkath-ˌōd 
1
: the negative electrode of an electrolytic cell compare anode sense 1
2
: the positive terminal of a battery
3
: the electron-emitting electrode of an electron tube
Medical Definition
cathode
noun
cath·ode
ˈkath-ˌōd
1
: the electrode of an electrochemical cell at which reduction occurs: as
a
: the negative terminal of an electrolytic cell
b
: the positive terminal of a storage battery that is delivering current
2
: the electron-emitting electrode of an electron tube compare anode
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