One of the four fundamental interactions of nature, which is mediated by photons and acts on quarks and charged leptons. The electromagnetic interaction is weaker than the strong interaction, but stronger than the weak and gravitational interactions. It is associated with electric and magnetic fields and is responsible for atomic structure, chemical reactions, the attractive and repulsive electromagnetic forces associated with electrically charged or magnetically polarized particles, and all other electromagnetic phenomena.
An instance of this interaction.
The relatively long-range interaction between elementary particles resulting from their electric and magnetic fields, responsible for molecular structure, chemical reactions, and other electromagnetic phenomena.
(physics) The fundamental interaction responsible for the electromagnetic force.