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quantum chromodynamics

noun, plural in form but singular or plural in construction

Definition of quantum chromodynamics

: a theory of fundamental particles based on the assumption that quarks are distinguished by differences in color (see color entry 1 sense 15) and are held together (as in hadrons) by an exchange of gluons Quantum chromodynamics equations describe the characteristics and behavior of quarks and the peculiar force that binds different quarks and antiquarks together to create protons, neutrons, and other subatomic particles known as hadrons.— I. Peterson

Examples of quantum chromodynamics in a Sentence

Recent Examples on the Web

 But the theory of the strong force, called quantum chromodynamics (QCD), is so complicated that no one has been able to predict exactly how matter will behave at high temperatures and densities. — Quanta Magazine, "Physicists Peer Inside a Fireball of Quantum Matter," 30 July 2019

First Known Use of quantum chromodynamics

1975, in the meaning defined above

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