man ‧ ga ‧ nese /ˈmæŋɡəniːz/ BrE AmE noun [uncountable]
[ Date: 1600-1700 ; Language: French ; Origin: manganèse , from Italian manganese 'magnesia, manganese' , from Medieval Latin magnesia ; ⇨ ↑ magnesia ]
a grey-white metal that breaks easily and is used to make steel and glass. It is a chemical ↑ element : symbol Mn