background radiation

1. 1.

   radiation coming from sources other than those being observed

   Broaderbackground

Questions about background radiation

What does background radiation mean?

background radiation means "radiation coming from sources other than those being observed".

Is background radiation a common word?

background radiation is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.