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to expose to the action or effect of or to cause to circulate through:
to aerate milk in order to remove odors.
to change or treat with or a gas, especially with carbon dioxide.
Physiology. to expose (a medium or tissue) to , as in the oxygenation of the blood in respiration.
Historical Examples

It is cultivated in contact with the air, or in aerated liquids.
Louis Pasteur Ren Vallery-Radot

If water is impure, it must be boiled and then aerated before it is drunk.
Scientific American Supplement, No. 447, July 26, 1884 Various

The chief exports are linen, whisky, aerated waters, iron ore and cattle.
Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 5 Various

They are not true gills, however, as the blood is not aerated in them.
Our Common Insects Alpheus Spring Packard

What she wanted from him came out over their aerated sherbet pie.
A Fine Fix R. C. Noll

Thus, the success of aerated bread depends to some extent on the temperature of the mixture when it goes into the oven.
Woman’s Institute Library of Cookery, Vol. 1 Woman’s Institute of Domestic Arts and Sciences

Sir Philip, in his old-fashioned way, raised his glass of aerated water to one and another of the young men.
The Hand in the Dark Arthur J. Rees

Steam is generated in one of the ships’ boilers, and condensed, filtered, and aerated in a special apparatus.
Scientific American Supplement, No. 492, June 6, 1885 Various

Upon this property the manufacture of aerated waters depends.
Scientific American Supplement, No. 288 Various

People asked for buns every day—people in railway refreshment rooms, in aerated bread shops.
They and I Jerome K. Jerome

verb
the past tense and past participle of aerate
adjective
(informal) angry or agitated
verb (transitive)
to charge (a liquid) with a gas, esp carbon dioxide, as in the manufacture of effervescent drink
to expose to the action or circulation of the air, so as to purify
v.

1794, from Latin aer (genitive aeris; see air (n.1)) + verbal suffix -ate (2). Related: Aerated; aerating.
aerate
(âr’āt)

To add a gas, such as carbon dioxide, to a liquid.

To supply with oxygen. Blood is aerated in the alveoli of the lungs.

To supply with air or expose to the circulation of air.