양성자나 중성자와 같은 강입자를 구성하는 점 모양의 가설적 입자.
A point-like constituent of a nucleon, such as a quark or gluon, used in the model of high-energy hadron collisions.
예문:
"The parton model was proposed by Richard Feynman to explain high-energy scattering experiments."
"In quantum chromodynamics, partons are identified as quarks and gluons."