Definition of digestion noun from the Oxford Advanced American Dictionary

     

    digestion

     noun
    noun
    NAmE//daɪˈdʒɛstʃən//
     
    , NAmE//dɪˈdʒɛstʃən//
     
    [uncountable]
     
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  1. 1 the process of digesting food Vegetables are usually cooked to aid digestion. compare indigestion
  2. 2 the ability to digest food to have good/poor digestion
See the Oxford Advanced Learner's Dictionary entry: digestion