Definition of "photon"
- noun
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.
- Sources
Word Collect Answers uses cookies and collects your device’s advertising identifier and Internet protocol address. These enable personalized ads and analytics to improve our website. Learn more or opt out Privacy Policy
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.