# parton

/ˈpɑɹtən/ (US) · /pˈɑːtən/ (UK) · CEFR C2 · Noun

Source: https://englishreference.com/word/parton
Updated: 2026-05-11

## Definition

a tiny part found inside a proton or neutron. Scientists use this name for the smaller pieces that make up the center of an atom.

For teachers: any of the point-like constituents of a nucleon, such as a quark or a gluon, that participate in high-energy collisions. Historically used in the context of the parton model to describe the internal structure of hadrons.

## Examples

- The scientist studied how partons behave during high-speed collisions.
- Researchers used the particle accelerator to observe how partons interact within the nucleus of an atom.
- The parton model was instrumental in explaining deep inelastic scattering experiments, eventually leading to the modern understanding of quantum chromodynamics and the role of quarks and gluons.

## Usage notes

- Primarily used in the field of particle physics; often appears in the plural form.

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