Как по Английски будет substrat

adjective

Of or relating to a substratum; forming a substratum; underlying; fundamental; (now chiefly linguistics) of or relating to a substrate language.

noun

An underlying substance or layer.

Примеры использования:

Where volcanic material has been extruded on to a soft substrate, the rate of erosion of the substr…

noun

An underlying layer or substance, in particular a layer of rock or soil beneath the surface of the ground.

Примеры использования:

The plant will grow very rapidly and send out runners above the substratum