Definition of photon in English:

photon

Syllabification: pho·ton
Pronunciation: /ˈfōtän
 
/

noun

Physics
A particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.
More example sentences
  • The world of the realist is populated by electrons and photons, quarks and gluons.
  • Until now, physicists have only been able to entangle photons, electrons and atoms, using different methods in each case.
  • A photon has zero rest mass, but it carries energy and momentum.

Origin

early 20th century: from Greek phōs, phōt- 'light', on the pattern of electron.

Definition of photon in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day glee
Pronunciation: glē
noun
great delight