Definition of STRATUM

noun : STRATUM

Source: WordNet 3.1

  • 1. (

    ) one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock) ;

  • 3. (

    ) an abstract place usually conceived as having depth; "a good actor communicates on several levels"; "a simile has at least two layers of meaning"; "the mind functions on many strata simultaneously" ;

  • 4. (

    ) a subpopulation divided into a stratified sampling ;

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