Me-sōm'e-las, n.
n. [Lat. mesomelas, Gr. μέσος, middle, and μέλας, black.] A precious stone with a black vein parting every color in the midst. [Obs.]
n. [Lat. mesomelas, Gr. μέσος, middle, and μέλας, black.] A precious stone with a black vein parting every color in the midst. [Obs.]