Aeration
Pronunciation : A`?r*a"tion
Part of Speech : n.
Etymology : [Cf. F. a?ration.]
Definition : 1. Exposure to the free action of the air; airing; as, a?ration of soil, of spawn, etc.
2. (Physiol.)
Defn: A change produced in the blood by exposure to the air in respiration; oxygenation of the blood in respiration; arterialization.
3. The act or preparation of charging with carbonic acid gas or with oxygen.
Source : Webster's Unabridged Dictionary, 1913