cosmic radiation

1. 1.

   radiation coming from outside the solar system

   Broaderradiation

   Narrowercosmic background radiation

   Partscosmic ray

Questions about cosmic radiation

What does cosmic radiation mean?

cosmic radiation means "radiation coming from outside the solar system".

Is cosmic radiation a common word?

cosmic 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.