(definition) by Webster 1913 Tue Dec 21 1999 at 21:40:06

A`er*a"tion (#), n. [Cf. F. a'eration.]

1.

Exposure to the free action of the air; airing; as, aeration of soil, of spawn, etc.

2. Physiol.

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.

 

© Webster 1913.

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