Photon Definition

fōtŏn
photons
noun
A subatomic particle, having energy and momentum but no mass or electric charge, that is the quantum unit of electromagnetic radiation, including light.
Webster's New World
A unit of retinal illumination equal to the illumination from a surface having a brightness of one candle per sq meter seen through a pupil area of one sq millimeter.
Webster's New World
These types of particles cannot be divided into sub-components like other particles of matter.
YourDictionary
Photons are unique and stand out from other particles because of their properties. This is because photons have the properties of waves as well as the properties of a normal particle. This means that it can be refracted by a lens and interfere with other waves while simultaneously being analyzed as a particle of matter.
YourDictionary
Photons are also unique in the sense that they are particles with no mass.
YourDictionary
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Other Word Forms of Photon

Noun

Singular:
photon
Plural:
photons

Origin of Photon

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