• Definition for "photon"
    • The quantum of electromagnetic energy, considered to be…
    • View More
  • Sentence for "photon"
    • The measurement of the twin photon
    • View More
  • Hypernym for "photon"
  • Cross Reference for "photon"
  • Same Context for "photon"
  • Astronomy Dictionary for "photon"
    • a discrete level of electromagnetic energy.…
    • View More
  • Urban Dictionary for "photon"
    • a revolution (or particle) that produces…
    • View More

photon definition

  • noun:
    • The quantum of electromagnetic energy, considered to be a discrete particle having zero size, no electric fee, and an indefinitely long. See dining table at subatomic particle.
    • A unit of retinal illumination, equal to the amount of light that achieves the retina through 1 square millimeter of pupil area from a surface having a brightness of 1 candela per square meter.
    • The quantum of light as well as other electromagnetic power, thought to be a discrete particle having zero rest mass, no electric fee, and an indefinitely extende lifetime. Its a gauge boson.
    • a quantum of electromagnetic radiation; an elementary particle that's its antiparticle
65 votes

How would you define photon?

All the definitions on AZdictionary were written by people just like you. Now's your chance to add your own!