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Noun aeration has 2 senses
  1. aeration - the process of exposing to air (so as to purify)
    --1 is a kind of     natural process, natural action, action, activity
    Derived form: verb aerate1
  2. aeration - the act of charging a liquid with a gas making it effervescent
    --2 is a kind of     change of state
    Derived form: verb aerate3
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