Definition of maturity noun from the Oxford Advanced American Dictionary

      

    maturity

     noun
    noun
    NAmE//məˈtʃʊrət̮i//
     
    , NAmE//məˈtʊrət̮i//
     
    [uncountable]
     
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  1. 1the quality of thinking and behaving in a sensible, adult manner He has maturity beyond his years. Her poems show great maturity.
  2. 2(of a person, an animal, or a plant) the state of being fully grown or developed The forest will take 100 years to reach maturity.
  3. 3(business) (of an insurance policy, etc.) the time when money you have invested is ready to be paid
See the Oxford Advanced Learner's Dictionary entry: maturity