me·​son | \ ˈme-ˌzän How to pronounce meson (audio) , ˈmā- How to pronounce meson (audio) , ˈmē- How to pronounce meson (audio) , -ˌsän How to pronounce meson (audio) \

Definition of meson

: any of a group of fundamental particles (such as the pion and kaon) made up of a quark and an antiquark that are subject to the strong force and have zero or an integer number of quantum units of spin

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Other Words from meson

mesonic \ me-​ˈzä-​nik How to pronounce mesonic (audio) , mā-​ , mē-​ How to pronounce mesonic (audio) , -​ˈsä-​ How to pronounce mesonic (audio) \ adjective

Examples of meson in a Sentence

Recent Examples on the Web

Then there are dozens of particles made up of those elementary particles, including hadrons, which are constructed of quarks and gluons, and mesons, made of a quark and anti-quark. Jason Daley, Smithsonian, "The Large Hadron Collider Is Getting A Huge Power Boost," 19 June 2018 However, measurements at the CERN collider have shown a definite propensity for the mesons to underproduce muons, as reported at CERN in April. Dennis Overbye, New York Times, "Yearning for New Physics at CERN, in a Post-Higgs Way," 19 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'meson.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of meson

1939, in the meaning defined above

History and Etymology for meson

International Scientific Vocabulary mes- + -on entry 2

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Time Traveler for meson

The first known use of meson was in 1939

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More Definitions for meson


me·​son | \ ˈmez-ˌän How to pronounce meson (audio) , ˈmēz- How to pronounce meson (audio) , ˈmēs-, ˈmes-\

Medical Definition of meson

: any of a group of unstable elementary particles that are subject to nuclear forces and have masses much greater than that of the electron

Other Words from meson

mesonic \ me-​ˈzän-​ik How to pronounce mesonic (audio) , mē-​ How to pronounce mesonic (audio) , -​ˈsän-​ \ adjective

More from Merriam-Webster on meson

Rhyming Dictionary: Words that rhyme with meson Encyclopedia article about meson

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