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Noun: stratum (strata)  straa-tum or strey-tum
  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)
     
  2. People having the same social, economic, or educational status
    "the working stratum";
    - class, social class, socio-economic class
     
  3. An abstract place usually conceived as having depth
    "the mind functions on many strata simultaneously";
    - level, layer

Derived forms: strata

Type of: layer, people, place

Part of: class structure, society

Encyclopedia: Stratum, Netherlands