Definition of Aerate

Verb: aerate 'eh,reyt

Expose to fresh air
"aerate your old sneakers";
- air out, air
Aerate (sewage) so as to favour the growth of organisms that decompose organic matter
- activate
Impregnate, combine, or supply with oxygen
"aerate blood";
- oxygenate, oxygenize, oxygenise [Brit]