stratification
n. அடுக்கமைவு, அடுக்கடுக்கான படுகைகளாக அமைதல்.
Strat`i*fi*ca"tion, n. Etym: [Cf. F. stratification.] 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.