mass-energy
noun3
- Whereas in classical physics mass and energy are distinct concepts, on relativistic scales, they become indistinguishable and are replaced by mass-energy.
- In higher-energy physics, mass and energy eventually become meaningless as individual concepts; a particle's so-called "mass" is actually mass-energy and is often given equivalently in units of either mass (GeV/c²) or energy (GeV).
adjective1
- mass-to-energy
- Mass-energy conversion occurs during nuclear fusion and fission.
forms
mass energies · mass-energies