charr, n. [Ir. cear, Gael. ceara, lit., red, blood-colored, fr. cear blood. So named from its red belly.].
One of the several species of fishes of the genus Salvelinus, allied to the spotted trout and salmon, inhabiting deep lakes in mountainous regions in Europe. In the United States, the brook trout (Salvelinus fontinalis) is sometimes called a char. [1913 Webster]