Definition of aggregation noun from the Oxford Advanced Learner's Dictionary

  

aggregation

 noun
noun
BrE BrE//ˌæɡrɪˈɡeɪʃn//
 
; NAmE NAmE//ˌæɡrɪˈɡeɪʃn//
 
 
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[uncountable, countable] (formal or specialist) the act of putting together different items, amounts, etc. into a single group or total the aggregation of data