0 the fact that the different parts of something exist in or have been arranged into separate groups:
The emergence of an English-educated middle class created a new form of stratification based on education, wealth, and occupation.
The apprenticeship system evolved into an elaborate progression of examinations leading to a stratification by educational accomplishment.
There has been an extreme stratification in the sport between the top few teams and the rest.
This analysis showed that this social role remains very important and appears to determine the current social stratification.
Then the velocity of the vertical jet is expected to become generally larger with increasing stratification.
Further investigations are necessary to characterize tropical rain-forest stratification isotopically.
For purposes of age stratification, the terms ' elderly ' and ' seniors ' will be distinguished here.
In their experiments, the top and bottom layers are homogeneous fluids with different densities, with an interfacial layer of approximately uniform stratification between them.
