This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The process by which air is circulated through or mixed with a substance such as soil or a liquid.

n. Exposure to the free action of the air; airing

n. A change produced in the blood by exposure to the air in respiration; oxygenation of the blood in respiration; arterialization.

n. The act or preparation of charging a liquid with carbon dioxide gas to make it effervescent.

n. the act of charging a liquid with air or oxygen for the purpose of purification.

n. The act of airing or of exposing to the action of the air: as, the aëration of soil by plowing, harrowing, etc.

n. The act or operation of mixing or saturating with a gas, as carbonic-acid gas or common air.

n. In physiology, the arterialization of the venous blood by respiration in the higher animals, and by corresponding processes in the lower animals.

n. the process of exposing to air (so as to purify)

n. the act of charging a liquid with a gas making it effervescent

"Seems it aids in aeration as well. nordist on 25 Jan 2010 at 6: 06 am #"

aëration   

natural process    action    activity    natural action    change of state   

aerate    aerated   

airing    arterialization   

two-speed    open-toed    perfusion    strappy    low-heeled    permittivity    fire-apparatus    cross-gartered    cystostomy    debridement