Aspect ratio \Aspect ratio\ (A["e]ronautics) The ratio of the long to the short side of an a["e]roplane, a["e]rocurve, or wing. [Webster 1913 Suppl.]
aspect ratio <graphics> The ratio of width to height of a {pixel}, {image}, or {display screen}. Square pixels (1:1) are considered preferable but displays are usually about 5:4. (1994-11-30)