cold cathode

1. 1.

   a cathode that is a source of electrons without being heated

   Broadercathode

Questions about cold cathode

What does cold cathode mean?

cold cathode means "a cathode that is a source of electrons without being heated".

Is cold cathode a common word?

cold cathode 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.