Stratification

Stratification may refer to:

Mathematics

 * Stratification (mathematics), any consistent assignment of numbers to predicate symbols
 * Data stratification in statistics

Earth sciences

 * Stable and unstable stratification
 * Stratification, or stratum, the layering of rocks
 * Stratification (archeology), the formation of layers (strata) in which objects are found
 * Stratification (water), the formation of water layers based on temperature (and salinity, in oceans)
 * Ocean stratification
 * Lake stratification
 * Atmospheric stratification, the dividing of the Earth's atmosphere into strata
 * Inversion (meteorology)

Social sciences

 * Social stratification, the dividing of a society into levels based on power or socioeconomic status

Biology

 * Stratification (seeds), where seeds are treated to simulate winter conditions so that germination may occur
 * Stratification (clinical trials), partitioning of subjects by a factors other than the intervention
 * Stratification (vegetation), the vertical layering of vegetation e.g. within a forest
 * Population stratification, the stratification of a genetic population based on allele frequencies

Linguistics

 * Stratification (linguistics), the idea that language is organized in hierarchically ordered strata (such as phonology, morphology, syntax, and semantics).