1. plural of stratum; layers of rock, earth, or other material
Usage: geology
2. different levels or classes within society, an organization, or a system
Usage: sociology

Examples

• The geologist studied the rock strata to understand the area's history.
• Different strata of sedimentary rock were visible in the canyon walls.
• The survey examined various social strata in the community.
• Archaeological excavations revealed multiple strata of ancient civilizations.
• The company's management consists of several organizational strata.
• Researchers analyzed data from different economic strata of the population.