what is an antineutron
antineutron. n. 1. (Atomic Physics) the antiparticle of a neutron; a particle having the same mass as the neutron but a magnetic moment of opposite sign.
Definition: A quark is one of the fundamental particles in physics. They join together to form hadrons, such as protons and neutrons. The study of quarks and the interactions between them through the strong force is called quantum chromodynamics. The anti-particle of a quark is the antiquark.hey join together to form hadrons, such as protons and neutrons. The study of quarks and the interactions between them through the strong force is called quantum chromodynamics. The anti-particle of a quark is the antiquark.