stratification

US [ˌstrætɪfɪˈkeɪʃ(ə)n]
UK [.strætɪfɪ'keɪʃ(ə)n]
  • n.分层;成层
  • Web层理;层化;分层法
Plural Form:stratifications  
Stratification
n.
1.
分层;成层the division of sth into different layers or groups
social stratification
社会阶层化