noun
- matter composed of antiparticles, which have the same mass as ordinary particles but opposite electric charge and other properties
Usage: physics
Examples
- Scientists study antimatter in particle accelerators.
- When matter and antimatter collide, they annihilate each other.
- Antimatter could theoretically be used as a powerful energy source.
- The positron is the antimatter counterpart of the electron.
- Creating antimatter requires enormous amounts of energy.
- Science fiction often features antimatter as spacecraft fuel.