noun
- Physics) the mass of a body regarded relativistically as energy. (.
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). mass energy. Retrieved September 21, 2026, from http://smartdefine.org/mass_energy/definitions/1211358 |
| Chicago | WordNet. 2010. "mass energy" http://smartdefine.org/mass_energy/definitions/1211358 (accessed September 21, 2026). |
| Harvard | WordNet 2010, mass energy, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/mass_energy/definitions/1211358>. |
| MLA | WordNet. "mass energy" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/mass_energy/definitions/1211358> |