(cooking) Bread which has been raised by charging the dough with carbon dioxide, instead of raising by fermentation.

plural of aerated bread

plural of aeration zone

(hydrology) A portion of the lithosphere in which the functional interstices of permeable rock or earth are not filled by water under hydrostatic pressure.

faucet aerator

A device for faucets/taps which mixes air with water to reduce the flowrate.