photon
The quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime. It is a gauge boson.
A kind of
- gauge boson
Related words
- biophoton
- biphoton
- diphoton
- graviphoton
- monophoton
- multiphoton
- photino
- superphoton
- triphoton
- antiphoton
- notoph
- photonic
Example sentences
Where this comes from
This definition is adapted from “photon” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.