1. • noun - (chemistry) a surface forming a common boundary between two things (two objects or liquids or chemical phases)
   • noun - (computer science) a program that controls a display for the user (usually on a computer monitor) and that allows the user to interact with the system
   • noun - the overlap where two theories or phenomena affect each other or have links with each other
   • noun - (computer science) computer circuit consisting of the hardware and associated circuitry that links one device with another (especially a computer and a hard disk drive or other peripherals)
2. • A surface forming a common boundary between adjacent regions, bodies, substances, or phases.
   • A point at which independent systems or diverse groups interact: “the interface between crime and politics where much of our reality is to be found” (Jack Kroll).
   • The point of interaction or communication between a computer and any other entity, such as a printer or human operator.
   • To join by means of an interface.
   • To serve as an interface for.
   • To serve as an interface or become interfaced.
   • To interact or coordinate smoothly: “Theatergoers were lured out of their seats and interfaced with the scenery” (New York Times).

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