Bladder infections are caused by bacteria in the bladder. Escherichia coli (E. coli) is usually the bacteria that causes a bladder infection. Bladders normally have a small amount of bacteria in them and urinating helps flush out the bacteria, but sometimes the bacteria grows so fast it causes a bladder infection.
aspect ratio. n. 1. The width-to-height ratio of an image or of the area used to display an image. Most widescreen televisions have an aspect ratio of 16:9. 2. The span-to-mean-chord ratio of an airfoil. aspect ratio.
Picture aspect ratio defines the shape of the displayed video image. Picture aspect ratio is notated X:Y, where X:Y is the ratio of picture width to picture height. Most video standards use either 4:3 or 16:9 picture aspect ratio. The 16:9 aspect ratio is commonly called widescreen.