1. To supply (blood) with oxygen. 2. To expose to the circulation of air for purification. 3. To supply or charge (liquid) with a gas, especially carbon dioxide.
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aer·ate 'a(-ə)r-.āt, 'e(-ə)r- vt, aer·at·ed; aer·at·ing
2) to supply or impregnate (as a liquid) with air
aer·a·tion .a(-ə)r-'ā-shən, .e(-ə)r- n
Medical dictionary. 2011.