interface

Definition

The point of interconnection or contact between entities.

Etymology

From inter- (“between”) + face (“shape, figure, form”).

Example Sentences

• "Public relations firms often serve as the interface between a company and the press."
• "If water and oil are mixed together, they tend to separate, and at equilibrium they are in different strata with an oil-water interface in between."
• "The surface of a lake is a water-air interface."