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

Example Sentences

Recent Examples on the Web Variation of magnetic field response and polarization behavior during discharging at 0.12 and 0.36 anode porosity values (right). IEEE Spectrum, 14 Jan. 2023 Usually, the anode stores more lithium than the cathode. The Physics Arxiv Blog, Discover Magazine, 17 May 2022 As for Tyfast, the company is commercializing a lithium-ion battery using a new anode material that can be charged quickly and last a long time. San Diego Union-Tribune, 11 Jan. 2023 Finally, Yoshino hit upon an improved anode material called petroleum coke. Catherine Meyers, Discover Magazine, 9 Oct. 2019 Batteries have an anode and a cathode, which contains most of a battery’s valuable metal. Kellen Browning, New York Times, 21 Dec. 2022 That means bubbles don't form on the anode and cathode and less energy is wasted, Hysata says. Ed Ballard, WSJ, 11 Nov. 2022 Batteries have two main components — an anode and a cathode. Catherine Meyers, Discover Magazine, 9 Oct. 2019 When a battery is used, lithium ions move from the anode to the cathode. Kellen Browning, New York Times, 21 Dec. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'anode.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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

Dictionary Entries Near anode

Cite this Entry

“Anode.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anode. Accessed 9 Feb. 2023.

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

More from Merriam-Webster on anode

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