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.
At the same time, hard-carbon anodes, one of the key components used in sodium-ion batteries, have moved into industrial-scale production, marking another important milestone in the development of a mature supply chain. Bojan Stojkovski, Interesting Engineering, 7 June 2026 The country now produces nearly 100% of the world’s anode supply and over 80% of battery cells made globally, according to BloombergNEF. Gene Berdichevsky, Fortune, 14 May 2026 For the unaware, silicon-carbon batteries replace traditional graphite anodes with silicon-carbon composites, allowing for up to 20% higher energy density without the extra size. Janhoi McGregor, Forbes.com, 12 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 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 9 Jun. 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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