antiatom
/ˈæntiˌætəm/
noun
- An atom made of antimatter, with a nucleus of antiprotons and antineutrons and positrons orbiting it.
- Scientists have created a few antiatoms in particle accelerators.
- Studying antiatoms helps physicists understand the nature of matter and antimatter.
- When an antiatom meets a regular atom, they annihilate each other in a burst of energy.