| substrate [`sǝb´strāt] BIOCHEMISTRY The substance with which an enzyme reacts. ECOLOGY The foundation to which a sessile organism is attached. ELECTRONICS The physical material on which a microcircuit is fabricated; used primarily for mechanical support and insulating purposes, as with ceramic, plastic, and glass substrates; however, semiconductor and ferrite substrates may also provide useful electrical functions. ENGINEERING Basic surface on which a material adheres, for example, paint or laminate. ORGANIC CHEMISTRY A compound with which a reagent reacts. |