anode

noun

an·​ode ˈa-ˌnōd How to pronounce anode (audio)
1
: the electrode of an electrochemical cell at which oxidation occurs: such as
a
: the positive terminal of an electrolytic cell
b
: the negative terminal of a galvanic cell
2
: the electron-collecting electrode of an electron tube
broadly : the positive electrode of a diode compare cathode
anodic adjective
or less commonly anodal
anodically adverb
or less commonly anodally

Examples of anode in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Why fast charging has been hard to crack The issue with existing high-capacity batteries, silicon-anode and lithium-anode types, is that speed comes at a cost. Deena Theresa, Interesting Engineering, 22 May 2026 China has already imposed export controls on lithium-ion batteries and graphite anodes — controls that took effect in November 2025 and remain in place, with a temporary suspension of enhanced licensing requirements currently in force through November 2026. Gene Berdichevsky, Fortune, 14 May 2026 At Kamoa-Kakula, Ivanhoe has started producing copper anodes from a new smelter designed to process 500,000 tonnes a year, adding a power-hungry step to an operation already underserved by DR Congo’s electricity deficit. Ruben Nyanguila, semafor.com, 6 May 2026 The bigger batteries are due to silicon-carbon cells, which use silicon to replace some of the graphite in a lithium battery’s anode. Dominic Preston, The Verge, 25 Apr. 2026 See All Example Sentences for anode

Word History

Etymology

Greek anodos way up, from ana- + hodos way

First Known Use

1834, in the meaning defined at sense 1

Time Traveler
The first known use of anode was in 1834

Cite this Entry

“Anode.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anode. Accessed 26 May. 2026.

Kids Definition

anode

noun
an·​ode ˈan-ˌōd How to pronounce anode (audio)
1
: the positive electrode of an electrolytic cell to which the negative ions are attracted compare cathode
2
: the negative terminal of a battery that is delivering electric current
3
: the electron-collecting electrode of an electron tube
anodic adjective

Medical Definition

anode

noun
an·​ode ˈan-ˌōd How to pronounce anode (audio)
1
: the electrode of an electrochemical cell at which oxidation occurs: as
a
: the positive terminal of an electrolytic cell
b
: the negative terminal of a storage battery that is delivering current
2
: the electron-collecting electrode of an electron tube compare cathode

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