Mān'ga-nēse', n.

n. [Fr. manganèse, It. manganese, sasso magnésio, Sp. manganese, manganesia, N. Lat. manganesia, manganesium, corrupted from Lat. magnēs, because of its resemblance to the magnet. See MAGNET.] (Chem.) A metal of a dusky white or whitish-gray color, very hard and difficult to fuse. It has the symbol Mn., and the chemical equivalent of 27.6.—Called also, sometimes, manganesium, and manganium.

¶ The name is very often applied to the black oxide of the metal.