An Etymological Dictionary of Astronomy and Astrophysics

1. The process whereby the energy and matter contained in a → supernova are injected into the → interstellar medium after the → supernova explosion. The → thermal energy injected into the ISM serves to → suppress → star formation, while → heavy elements → nucleosynthesized inside SNe tend to enhance star formation.
   

2. The matter thus injected.

See also: → supernova; → feedback.