|Look up stratum in Wiktionary, the free dictionary.|
A stratum is a geologic formation.
Stratum may also refer to:
Science and technologyEdit
- 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