the world > matter > gas > air > [noun] > air-pressure > pressurization of air or gas > decompression or recompression (3)
The action or an act of recompressing something, esp. a gas; the fact or state of being compressed again.
The process of relieving or reducing pressure. A reduction of the pressure of the air or other gas in an enclosed space; esp. (a) the process of…
The action or process of reducing the pressure of air or other gas inside an enclosed volume by pumping.