Definition of progression noun from the Oxford Advanced American Dictionary

     

    progression

     noun
    noun
    NAmE//prəˈɡrɛʃn//
     
     
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  1. 1 [uncountable, countable] the process of developing gradually from one stage or state to another opportunities for career progression the rapid progression of the disease progression (from something) (to something) the natural progression from childhood to adolescence
  2. 2[countable] a number of things that come in a series see also arithmetic progression, geometric progression
See the Oxford Advanced Learner's Dictionary entry: progression