Definition of superradiance in English:

superradiance

noun

Physics
  • The collective emission of coherent radiation by a system of excited atoms or ions, especially as a result of the correlation of excited atomic states by an external macroscopic polarization.

Origin

1950s; earliest use found in Journal of Applied Physics. From super- + radiance.

Pronunciation

superradiance

/ˈsjuːpəreɪdɪəns//ˈsuːpəreɪdɪəns/