compressed air

1. 1.

   air at a pressure greater than that of the atmosphere

   “compressed air is often used to power machines”

   Broadercompressed gas

   Narrowerair cushion

Questions about compressed air

What does compressed air mean?

compressed air means "air at a pressure greater than that of the atmosphere".

Is compressed air a common word?

compressed air 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.