
Substratum
Physical layer
Refers to real, tangible layers, like rock or sediment, not abstract ones.
Archaeologists studied the substratum to understand the site's history.
Technical contexts
Mostly used in specialized fields such as geology or construction.
The engineer analyzed the substratum for the new highway.
Supportive nature
Emphasizes the supporting role of a layer beneath another.
The greenhouse was constructed on a strong substratum.
Compare with
BaseBedrockFootFoundationFrameworkGroundworkRootSupport
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