Stratification
Pronunciation : Strat`i*fi*ca"tion
Part of Speech : n.
Etymology : [Cf. F. stratification.]
Definition : 1. The act or process of laying in strata, or the state of being laid in the form of strata, or layers.
2. (Physiol.)
Defn: The deposition of material in successive layers in the growth of a cell wall, thus giving rise to a stratified appearance.
Source : Webster's Unabridged Dictionary, 1913