substrate
n. countablen. the surface or material that something lives on, grows on, or is attached to. For example, a plant's substrate is the soil it grows in.
n. an underlying substance or layer on which some process occurs, or which provides nourishment for a living organism. In linguistics, it refers to a language that influences a dominant language through contact.
The bacteria grow quickly on this nutrient-rich substrate.
The artist prepared the wooden substrate with a layer of primer before applying the oil paints.
In marine biology, the composition of the rocky substrate determines which species of coral and anemone can successfully colonize the reef floor.
Anglicization of substratum.
Commonly used in scientific contexts like biology, chemistry, and linguistics; often paired with 'on' or 'of'.