Webster's English Dictionary

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aerate

aer.ate \'a(-*)r-.a-t, 'e(*)r-\ \.a(*)r-'a--sh*n, .e(*)-\ vt 1: to supply 
   (the blood) with oxygen by respiration  2: to supply or impregnate with air 
    3a: to combine or charge with gas  3b: to make effervescent  - aer.a.tion 
   n