Definitions for "Raster Graphic"
A computer image made up of small squares or "tiles" of color, called PIXELS. A raster graphic can be thought of like a tile mosaic; the image is broken up into tiny chunks. If you make a raster graphic larger, the tiles become bigger; this can result in a "stairstep" or mosaic appearance. All scanned images are examples of raster graphics. Contrast VECTOR GRAPHIC.
Most images you see on your computer screen are raster graphics. Pictures ...
a digital image named for the viewing area on a computer's monitor