Definition of maturation noun from the Oxford Advanced American Dictionary

      

    maturation

     noun
    noun
    NAmE//ˌmætʃəˈreɪʃn//
     
    [uncountable](formal)
     
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  1. 1the process of becoming or being made mature (= ready to eat or drink after being left for a period of time)
  2. 2 the process of becoming adult
 maturational
 
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adjective
See the Oxford Advanced Learner's Dictionary entry: maturation