meson
Pronunciation: /ˈmɛs.ɒn/
The English word “meson” has 3 meanings listed here.
noun
- The mesial plane dividing the body into similar right and left halves.
- A member of a group of subatomic particles having a mass intermediate between electrons and protons. (The most easily detected mesons fit this definition.)
- An elementary particle that is composed of a quark and an antiquark, such as a kaon or pion. (Mesons composed of rarer quarks are much heavier.)
Etymology
From Ancient Greek μέσον (méson, “middle”). Doublet of medium.
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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.