A feature of a graphics-based operating system that enlarges the window to the size of the screen. Contrast with
minimize. See
Win Maximize windows.
Maximize Buttons
The maximize button in Windows is the middle button with the square. In the Mac, the green plus sign (+) is officially the "zoom button," and it expands the window to a pre-set size, not the entire screen. With apps such as iTunes, clicking zoom may switch to mini mode with only playback buttons.