meson

[ mee-zon, ‐son, mez-on, mes‐ ]

noun
  1. 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.

Origin of meson

1
1935–40; mes- + -on1; cf. mesotron

Other words from meson

  • me·son·ic, adjective

Words Nearby meson

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use meson in a sentence

  • At the meson we found real rooms and true beds, and decided to stay for the night.

    In Indian Mexico (1908) | Frederick Starr
  • At half past eight we reached San Carlos, a mean town with no meson or other regular stopping-place.

    In Indian Mexico (1908) | Frederick Starr
  • We found shelter at a sort of a meson, where we could get no supper until nine, or possibly till ten.

    In Indian Mexico (1908) | Frederick Starr
  • The maximum intensity of this extracted meson beam depends on both the charge and energy desired.

    LRL Accelerators | Lawrence Radiation Laboratory
  • This meson beam then travels through a hole in the concrete shielding wall into the meson cave.

    LRL Accelerators | Lawrence Radiation Laboratory

British Dictionary definitions for meson

meson

/ (ˈmiːzɒn) /


noun
  1. 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 nucleus: Former name: mesotron See also muon

Origin of meson

1
C20: from meso- + -on

Derived forms of meson

  • mesonic or mesic, adjective

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

Scientific definitions for meson

meson

[ mĕzŏn′, mĕs-, mēzŏn′, -sŏn′ ]


  1. 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.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for meson

meson

[ (mez-on, may-zon) ]


An elementary particle in the atomic nucleus.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.