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

 

stratification

 noun
noun
BrE BrE//ˌstrætɪfɪˈkeɪʃn//
 
; NAmE NAmE//ˌstrætɪfɪˈkeɪʃn//
 
[uncountable](specialist)
 
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the division of something into different layers or groups social stratification
See the Oxford Advanced American Dictionary entry: stratification