air defense

1. 1.

   defensive measures designed to destroy attacking enemy aircraft or missiles or to nullify their effectiveness

   Broaderdefense

   Narroweractive air defensepassive air defense

Questions about air defense

What does air defense mean?

air defense means "defensive measures designed to destroy attacking enemy aircraft or missiles or to nullify their effectiveness".

Is air defense a common word?

air defense 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.