interface Definition

1. A surface forming a common boundary between two regions, things, etc which cannot be mixed, eg oil and water.
2. A common boundary or meeting-point between two different systems or processes.
3. physics.
The boundary between two adjacent phases, ie between gas and liquid, gas and solid, liquid and liquid, etc.
4. computing.
A device, consisting of hardware together with software programs to drive it, that links a computer to a peripheral device such as a printer.
5. computing.
The physical connection between a computer and the user.

tr & intr
1. To connect (a piece of equipment, etc) with another so as to make them compatible.