stratum meaning and definition

STRATUM noun

Definition of stratum (noun)

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 class"; "an emerging professional class"
   • synonyms: class, social class, socio-economic class
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"
   • synonyms: layer, level