Something visible that by association or convention represents something else that is invisible(noun)
WordNet. Princeton University. 2010.
Use "symbolic representation" in a sentence
"Parker stared aghast; it might possibly be a symbolic representation of Mrs. Mitcham’s character, for it was very hard and spiky; but it looked more like a Dutch doll, with its triangular nose, like a sharp-edged block of wood, and its eyes mere dots in an expanse of liver-coloured cheek."
"It is the symbolic representation of the way of the primary edict."
"Charmian London wrote that "The Water Baby" (Cosmopolitan, September, 1918), London's last written story, "... is clearly a symbolic representation of the Rebirth, the return to the Mother, exemplified by the arguments of the old Hawaiian Kohokumu.""