[mee-zon, ‐son, mez-on, mes‐]
- Physics. any hadron, or strongly interacting particle, other than a baryon. Mesons are bosons, having spins of 0, 1, 2, …, and, unlike baryons, do not obey a conservation law.
Compare quark model.
Origin of meson
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for meson
What about de Selva's place, the Radziwill hacienda, the Meson house?When the Owl Cries
As it was now darkening we hurried to the meson of the village.In Indian Mexico (1908)
The cottage has left no trace behind, the walls of the meson are a mass of ruins, and the courtyard deserted.The Ancient Cities of the New World
Further studies of the interactions of π mesons are made in the meson cave.LRL Accelerators
Lawrence Radiation Laboratory
Skinny told me, but it was something about meson flow and stuff like that that I didn't understand.We Didn't Do Anything Wrong, Hardly
- any of a group of elementary particles, such as a pion or kaon, that usually has a rest mass between those of an electron and a proton, and an integral spin. They are responsible for the force between nucleons in the atomic nucleusFormer name: mesotron See also muon
C20: from meso- + -on
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for meson
Online Etymology Dictionary, © 2010 Douglas Harper
[mĕz′ŏn′, mĕs′-, mē′zŏn′, -sŏn′]
- 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. See Table at subatomic particle.
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