graphical user interface: Meaning and Definition of

graph'ical us'er in'terface

Pronunciation: [key]
  1. a software interface designed to standardize and simplify the use of computer programs, as by using a mouse to manipulate text and images on a display screen featuring icons, windows, and menus.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.