Examples of antimatter in a Sentence
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These particles, known as cosmic rays, are mostly composed of single protons, although heavier atomic nuclei, electrons, positrons (the antimatter counterpart of electrons), and neutrinos are all present as well.
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Ethan Siegel, Big Think, 4 Sep. 2025
For example, the matter proton particle is partnered by the antimatter antiproton, while the matter electron is partnered by the antimatter positron.
—William Barter, Space.com, 1 Aug. 2025
The feat is exciting, however, because of what such antimatter experiments could reveal about the universe itself.
—Clara Moskowitz, Scientific American, 28 July 2025
Studying antimatter, therefore, has been extremely difficult.
—John Timmer, ArsTechnica, 19 May 2025
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Ethan Siegel, Big Think, 4 Sep. 2025
For example, the matter proton particle is partnered by the antimatter antiproton, while the matter electron is partnered by the antimatter positron.
—William Barter, Space.com, 1 Aug. 2025
The feat is exciting, however, because of what such antimatter experiments could reveal about the universe itself.
—Clara Moskowitz, Scientific American, 28 July 2025
Studying antimatter, therefore, has been extremely difficult.
—John Timmer, ArsTechnica, 19 May 2025
See All Example Sentences for antimatter
Cite this Entry
“Antimatter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antimatter. Accessed 10 Sep. 2025.
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antimatter
noun
an·ti·mat·ter
ˈant-i-ˌmat-ər 
: matter whose parts match parts of ordinary matter except in having some opposite properties (as a positive instead of a negative charge)
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