More generally, a skeuomorph is when a derivative uses design elements for decoration that were functionally necessary in the original. Paper grain in the backg

More generally, a skeuomorph is when a derivative uses design elements for decoration that were functionally necessary in the original. Paper grain in the background of a word processor is one example of a skeuomorph — but so are spokes on hubcaps, electric lights shaped like candles and the shutter sound your phone plays when it takes a picture.