A stratum in geology is a layer of sedimentary rock or sediment. In archaeology, it is a layer of man-produced sediment of a certain age.

Stratum may also refer to:

Science and technology

  • Layer or stratum (archaeology): see Stratigraphy (archaeology)
  • Stratum (linguistics), a language influencing or influenced through language contact
  • Stratum (statistics), in stratified sampling, a homogeneous subgroup of members in the population
  • Stratum, an element of a topologically stratified space
  • Clock stratum, in a clock network, a hierarchical level reflecting the quality of a clock
  • Stratum corneum, the outermost layer of the skin
  • Stratum membranosum, the membranous layer

Other uses

  • Stratum, Netherlands, a city district of Eindhoven
  • Stratum (album), a 2012 album by Drottnar
  • Stratum (sculpture), a series of sculptures by Mikyoung Kim in Portland, Oregon, US

See also

  • Strata (disambiguation)
  • Stratification (disambiguation)
  • Stratus (disambiguation)
  • Substrate (disambiguation)
  • Superstrate