noun
- the antiparticle of a proton, having the same mass as a proton but opposite electric charge
Usage: physics
Examples
- Scientists created antiprotons in the particle accelerator.
- When a proton and antiproton collide, they annihilate each other.
- The antiproton has a negative charge while the proton has a positive charge.
- Researchers study antiprotons to understand antimatter.
- The first antiproton was discovered in 1955.
- Antiprotons are produced in high-energy particle collisions.