SUBSTRATE
- A substance or layer that underlies something, or on which some process occurs, in particular
- The substance on which an enzyme acts
- A material that provides the surface on which something is deposited or inscribed, for example the silicon wafer used to manufacture integrated circuits
- The surface or material on or from which an organism lives, grows, or obtains its nourishment
- a substratum also SUBSTRATUM [n -S]