antialias

   or anti-alias

   To smooth out the jagged edges of lines and shapes in a digital images that have been aliased — jagged instead of straight or smoothly curving. The jagged edges of an aliased image are also called jaggies. In many graphics software applications antialiasing can be turned on or off when using "pencil," "eraser," "paint bucket," and "magic wand" tools. Not all text or artwork looks better when it is antialiased. Small text or images sometimes look too blurry when they are antialiased. Antialiasing can substantially increase the file size of images, making their printing go more slowly, and Web pages load more slowly too.