Etymology
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aeration (n.)

1570s, "act of exposing to air," from French aération, noun of action from aérer (v.), from Latin aer "the air, atmosphere" (see air (n.1)). In some cases, from aerate. In early scientific writing, aer/aër was used for specific kinds of air, a sense later given to gas (n.1).

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Definitions of aeration

aeration (n.)
the process of exposing to air (so as to purify);
the aeration of the soil
aeration (n.)
the act of charging a liquid with a gas making it effervescent;
From wordnet.princeton.edu