Nouns

(n)stratificationthe act or process or arranging persons into classes or social strata
(n)stratification, social stratificationthe condition of being arranged in social strata or classes within a group
(n)stratificationforming or depositing in layers
(n)stratificationa layered configuration
(n)stratificationthe placing of seeds in damp sand or sawdust or peat moss in order to preserve them or promote germination