an·​ti·​elec·​tron | \ ˌan-tē-ə-ˈlek-ˌträn How to pronounce antielectron (audio) , ˌan-ˌtī- \

Definition of antielectron

Examples of antielectron in a Sentence

Recent Examples on the Web Positronium is a volatile, short-lived atom that seems kind of like hydrogen but has a positron—an antiparticle considered opposite to an electron, sometimes even called an antielectron—instead of a proton. Caroline Delbert, Popular Mechanics, "Physicist Believes He Has What It Takes to Make a Gamma Ray Laser," 9 Dec. 2019 IsoDAR will take a small cyclotron and use it as a driver to produce lithium-8 that decays, resulting in a very pure source of antielectron neutrinos. Quanta Magazine, "On a Hunt for a Ghost of a Particle," 8 Dec. 2016

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

First Known Use of antielectron

1931, in the meaning defined above

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The first known use of antielectron was in 1931

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Last Updated

26 Dec 2019

Cite this Entry

“Antielectron.” Dictionary, Merriam-Webster, Accessed 24 Feb. 2020.

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