CEFR C2

stratum

noun

Meaning

A layer or a series of layers of rock, soil, or other material.

Examples

The archaeologist carefully examined the different strata of soil at the dig site.
Each stratum in the sedimentary rock tells a story about the environment at the time it was formed.

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stratum (C2)

noun

Pronunciation: /ˈstrɑːtəm/

Definition

A layer or a series of layers of rock, soil, or other material.

Examples

The archaeologist carefully examined the different strata of soil at the dig site.
Each stratum in the sedimentary rock tells a story about the environment at the time it was formed.
The upper stratum of the soil is rich in organic matter.

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