The process by which air is circulated through or mixed with a substance such as soil or a liquid.
By extension, a process in which other gases (such as carbon dioxide or nitrogen or argon) are circulated through or mixed with a substance (usually liquid), sometimes with the consequence of increasing the transfer of air into the same liquid at the surface due to the induced circulation.
Refrigeration.
A decrease in temperature.
That cools.
. Of food or medicine, according to traditional Chinese medicine: serving to cool or calm the body.