[in.ter.face] n (1882) 1: a surface forming a common boundary of two bodies, spaces, or phases "an oil-water ~"
2. a: the place at which independent and often unrelated systems meet and act on or communicate with each other "the man-machine ~" b: the means by which interaction or communication is achieved at an interface -- in.ter.fa.cial adj
[2]interface vt (1962) 1: to connect by means of an interface "~ a machine with a computer"
2: to serve as an interface for ~ vi 1: to become interfaced
2: to interact or coordinate harmoniously