Antinucleon definitions

antinucleon

(from the article `annihilation`) ...pi-mesons and K-mesons—which are classified within the hadron group of subatomic particles. Other annihilation reactions also occur. Nucleons ...
Found on http://www.britannica.com/eb/a-z/a/83

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antinucleon

an antiproton or an antineutron.
Found on https://www.infoplease.com/dictionary/antinucleon

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