interface

in·ter·face

noun \ˈint-ər-ˌfās\

Definition of INTERFACE

: a surface forming a common boundary of two bodies, spaces, or phases <interfaces between various tissues such as skin, fatty tissue, and muscle—H. P. Schwan>

—interface transitive verb, interfaced interfac·ing

—in·ter·fa·cial \ˌint-ər-ˈfā-shəl\ adjective