1. The branch of physics that describes the strong nuclear force and the interactions between quarks and gluons, analogous to electromagnetism but governing the color charge of particles.
Usage: technical; physics; often used in the phrase 'quantum chromodynamics' (QCD)

Examples

• Quantum chromodynamics is the theory that explains how quarks are bound together inside protons and neutrons.
• Chromodynamics uses the concept of color charge, which is different from electric charge in electromagnetism.
• Scientists use chromodynamics to predict the behavior of particles in high-energy collisions.
• The strong force described by chromodynamics is responsible for holding atomic nuclei together.
• Chromodynamics has been validated through numerous particle physics experiments at accelerators like the Large Hadron Collider.