Meaning of STRATIFICATION in English

STRATIFICATION

strat ‧ i ‧ fi ‧ ca ‧ tion /ˌstrætəfəˈkeɪʃ ə n, ˌstrætɪfəˈkeɪʃ ə n/ BrE AmE noun [uncountable and countable]

1 . when society is divided into separate social classes:

The Indian caste system is an example of social stratification.

2 . the way in which earth, rocks etc form layers over time

—stratify /ˈstrætəfaɪ, ˈstrætɪfaɪ/ verb [intransitive and transitive]

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.