Wiktionary
recirculation
n. The act or process of recirculate.
Usage examples of "recirculation".
This was far more durable, however, and heated with recirculation systems to make him comfortable .
She had sustenance and air recirculation, so the emergency power supply had survived when ship systems were cut, and she retained her store of chemical compounds and enzymes.
Several tubes ran from his arms, some to instill the icing solution, some to drain it off in a constant recirculation of the hypothermic solution.
Harry Quong and Chas Ryan were outside, reinstalling the electrical and air recirculation equipment displaced from the shack in one of the two trailers.