cath·​ode | \ ˈka-ˌthōd How to pronounce cathode (audio) \

Definition of cathode

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

Other Words from cathode

cathodal \ ˈka-​ˌthō-​dᵊl How to pronounce cathode (audio) \ adjective
cathodally adverb
cathodic \ ka-​ˈthä-​dik How to pronounce cathode (audio) , -​ˈthō-​ How to pronounce cathode (audio) \ adjective
cathodically \ ka-​ˈthä-​di-​k(ə-​)lē How to pronounce cathode (audio) , -​ˈthō-​ \ adverb

Examples of cathode in a Sentence

Recent Examples on the Web Direct recycling is an alternative that basically deconstructs the battery and retains the cathode and anode materials to be reconditioned. Shel Evergreen, Ars Technica, 19 Apr. 2022 That power then provided a continuous current across its anode and cathode, delivering the energy to an Arm processor. Joshua Hawkins, BGR, 16 May 2022 Researchers have tried to crack the code by experimenting with all four major lithium-ion battery components — cathode, anode, separator and electrolytes. Mike Freeman, San Diego Union-Tribune, 26 Apr. 2022 The anode and cathode of the batteries contain materials that are also subject to potential supply crunches, like cobalt and nickel. Shel Evergreen, Ars Technica, 19 Apr. 2022 The chemicals giant described Nornickel as an important supplier of nickel and cobalt for its production of cathode materials as well as a source of palladium and platinum. Alistair Macdonald, WSJ, 6 Mar. 2022 Last year, Musk said Tesla was changing the 4680 battery chemistry to a type of lithium-iron-phosphate (LFP) cathode. Eric Killelea, San Antonio Express-News, 9 Feb. 2022 Cobalt can boost charge rates and has a stabilizing effect, extending battery life and preventing cathode corrosion that can lead to battery fires. Nicholas Bariyo, WSJ, 12 Mar. 2022 As part of an EU-wide plan to build an EV battery supply chain, BASF plans to finally start production this year of cathode raw materials in Germany. Christiaan Hetzner, Fortune, 8 Mar. 2022 See More

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

First Known Use of cathode

1834, in the meaning defined at sense 1

History and Etymology for cathode

Greek kathodos way down, from kata- + hodos way

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Time Traveler for cathode

Time Traveler

The first known use of cathode was in 1834

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Dictionary Entries Near cathode



cathode current

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Statistics for cathode

Last Updated

2 Jun 2022

Cite this Entry

“Cathode.” Dictionary, Merriam-Webster, Accessed 1 Jul. 2022.

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More Definitions for cathode


cath·​ode | \ ˈkath-ˌōd How to pronounce cathode (audio) \

Medical Definition of cathode

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

More from Merriam-Webster on cathode

Nglish: Translation of cathode for Spanish Speakers Encyclopedia article about cathode


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