1. Plural of antinucleon; subatomic particles that are the antimatter counterparts of nucleons (protons and neutrons), having the same mass but opposite charge and other quantum properties.
Usage: physics; technical; plural form

Examples

• Antinucleons are produced in high-energy particle collisions in accelerators.
• The study of antinucleons helps physicists understand the symmetry between matter and antimatter.
• When antinucleons encounter ordinary nucleons, they annihilate and release energy.
• Researchers detected antinucleons in the detector after the collision experiment.
• The properties of antinucleons mirror those of their matter counterparts.