(a) either of two eastern North American flatfishes, the American plaice, Hippoglossoides platessoides, or the windowpane, Scophthalmus aquosus; (b)…

Originally U.S. More fully windowpane flounder. A flatfish of the western Atlantic, Scophthalmus aquosus (family Scophthalmidae), with a deep…

U.S. The windowpane flounder Scophthalmus aquosus, the body of which is so flat as to be almost translucent; also called sand flounder. In later use…