H/W, In computer displays and graphics, the ratio of the width of an image or image area to its height. An aspect ratio of 2:1, for example, indicates that the image is twice as wide as it is high. The aspect ratio is an important factor in maintaining correct proportions when an image is printed, rescaled, or incorporated into another document.
The ratio of the width to the height of a tv picture.
A ratio of one dimension to another: as the ratio of span to mean chord of an airfoil; the ratio of the width of a television or motion-picture image to its height.