Stratification

[,strætɪfɪ'keɪʃən] or [,strætɪfɪ'keʃən]

解释:

(noun.) the placing of seeds in damp sand or sawdust or peat moss in order to preserve them or promote germination.

(noun.) the act or process or arranging persons into classes or social strata.

(noun.) a layered configuration.

(noun.) forming or depositing in layers.

(noun.) the condition of being arranged in social strata or classes within a group.

手打:普里西拉--From WordNet

解释:

(n.) The act or process of laying in strata, or the state of being laid in the form of strata, or layers.

(n.) The deposition of material in successive layers in the growth of a cell wall, thus giving rise to a stratified appearance.

手打:奥斯伯特