Definition, Meaning & Synonyms

substratum

noun

/ˈsʌbstrætəm/

Definition

A layer or underlying substance, particularly in geology or linguistics.

Examples

The substratum of the city’s infrastructure is often overlooked.
In linguistics, the native language that influences a second language is considered a substratum.
The gardener analyzed the substratum to ensure healthy root growth.

Meaning

In general usage, substratum refers to something that underlies or serves as a foundation for something else. It can refer to a physical layer such as soil beneath a surface or to the underlying principles of a system or theory.