noun
- A quantum of electromagnetic radiation; an elementary particle that is its own antiparticle. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). photon. Retrieved September 22, 2026, from http://smartdefine.org/photon/definitions/1227297 |
| Chicago | WordNet. 2010. "photon" http://smartdefine.org/photon/definitions/1227297 (accessed September 22, 2026). |
| Harvard | WordNet 2010, photon, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/photon/definitions/1227297>. |
| MLA | WordNet. "photon" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/photon/definitions/1227297> |