interfaces
n. countable B2 Upper Intermediate US //ˈɪnɝˌfeɪsɪz// UK //ˈɪntəfˌeɪsɪz// in·ter·faces
n. the points where two different systems, groups, or pieces of equipment meet and work together.
n. points of interaction or communication between two distinct entities, systems, or subjects.
The software has several user-friendly interfaces.
The project failed because the interfaces between the different engineering teams were not clearly defined.
Modern research often occurs at the interfaces of traditional disciplines, where biology and computer science meet to solve complex genetic puzzles.
Usage
Often used with the preposition 'between' to describe the connection point of two systems.