1. [syn: interface, user interface]
The Collaborative International Dictionary of English v.0.48:
interface \interface\ n.
1. a surface forming a common boundary between two things,
especially between two fluids. [WordNet sense 1]
2. (Computers) hardware that links one device with another
(especially a computer). [WordNet sense 2]
3. (Computers) That part of a computer program which controls
the way a program interacts with a user; the manner of
inputting and outputting of data, and the way information
is presented on a computer monitor; also called user
interface; as, a graphical user interface; a
WordNet (r) 3.0 (2006):
n 1: (computer science) a program that controls a display for
the user (usually on a computer monitor) and that allows
the user to interact with the system [syn: interface,
The Free On-line Dictionary of Computing (18 March 2015):
(UI) The aspects of a computer system or program which can be
seen (or heard or otherwise perceived) by the human user, and
the commands and mechanisms the user uses to control its
operation and input data.
A graphical user interface emphasises the use of pictures
for output and a pointing device such as a mouse for input
and control whereas a command line interface requires the
user to type textual commands and input at a keyboard and
produces a single stream of text as output.
A user interface contrasts with, but is typically built on top
of, an Application Program Interface (API).
See also user interface copyright.