elec·​trode | \ i-ˈlek-ˌtrōd How to pronounce electrode (audio) \

Definition of electrode

1 : a conductor used to establish electrical contact with a nonmetallic part of a circuit
2 : an element in a semiconductor device (such as a transistor) that emits or collects electrons or holes or controls their movements

Examples of electrode in a Sentence

Recent Examples on the Web

To adapt ionic wind to flight, the MIT researchers mounted pairs of electrodes under the wings of a drone, where propellers normally go. Jonathon Keats, Discover Magazine, "The Origins of Flight, From Birds to Bugs to Planes," 21 June 2019 Get our daily newsletter tDCS uses electrodes attached to the scalp to pass a tiny electrical current through the brain. The Economist, "Zapping the brain improves creativity," 14 June 2019 Eavesdropping on the brain To translate thoughts into sentences, Anumanchipalli and his colleagues used electrodes placed directly on the brain's surface. Michael Greshko, National Geographic, "New device translates brain activity into speech. Here’s how.," 24 Apr. 2019 And when the electrode positions were reversed, the scientists saw a corresponding decrease in measured creativity compared with the sham group. The Economist, "Zapping the brain improves creativity," 14 June 2019 The enzyme partners an electron from the electrode with a proton from water to make a hydrogen atom, which the microbe can absorb. Quanta Magazine, "How to Grow Metal-Eating Microbes," 21 June 2016 Kimberly Noble, a neuroscientist, holds up a blue and red cap dotted with electrodes that rest on a toddler’s scalp to measure electrical activity in the brain. Leslie Brody, WSJ, "Can an Extra $333 a Month Improve a Baby’s Brain? A Research Team Wants to Know.," 29 Apr. 2019 Until the electrodes were implanted Mr. B had no particular interest in music, least of all country music. Carl Elliott, The New York Review of Books, "Happiness on Demand?," 7 Feb. 2019 These liquids enable ions to flow between electrodes separated by a porous membrane, thus creating a current. Matthew Sedacca, Scientific American, "These New Batteries Won't Make Your Smartphone Explode," 1 Oct. 2017

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

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First Known Use of electrode

1833, in the meaning defined at sense 1

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Statistics for electrode

Last Updated

19 Jul 2019

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Time Traveler for electrode

The first known use of electrode was in 1833

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More Definitions for electrode



English Language Learners Definition of electrode

: one of the two points through which electricity flows into or out of a battery or other device


elec·​trode | \ i-ˈlek-ˌtrōd How to pronounce electrode (audio) \

Kids Definition of electrode

: a conductor (as a metal or carbon) used to make electrical contact with a part of an electrical circuit that is not metallic


elec·​trode | \ i-ˈlek-ˌtrōd How to pronounce electrode (audio) \

Medical Definition of electrode

: a conductor used to establish electrical contact with a nonmetallic part of a circuit

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More from Merriam-Webster on electrode

Rhyming Dictionary: Words that rhyme with electrode

Spanish Central: Translation of electrode

Nglish: Translation of electrode for Spanish Speakers

Britannica.com: Encyclopedia article about electrode

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