Meson definition
Any of a family of subatomic particles that are composed of a quark and an antiquark. Their masses are generally intermediate between leptons and baryons, and they can have positive, negative, or neutral charge. Mesons form a subclass of hadrons and include the kaon, pion and J/psi particles. Mesons were originally believed to be the particles that mediated the strong nuclear force, but it has since been shown that the gluon mediates this force.
(particle physics) Any of a group of subatomic particles that are both hadrons and bosons, including the pion and kaon.
noun
(rare except entomology) The mesial plane dividing the body into similar right and left halves.
noun
Any of a class of subatomic particles that are both hadrons and bosons, are composed of a quark and an antiquark, participate in strong interactions, and have masses generally intermediate between those of leptons and baryons.
noun
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Other Word Forms
Noun
Singular:
meson
Plural:
mesonsOrigin of meson
- meso– –on
From American Heritage Dictionary of the English Language, 5th Edition
- From Ancient Greek μέσον (méson, “middle").
From Wiktionary
- From meso- +"Ž on.
From Wiktionary