Definition of manganese noun from the Oxford Advanced American Dictionary

 

manganese

 noun
noun
NAmE//ˈmæŋɡəˌniz//
 
, NAmE//ˈmæŋɡəˌnis//
 
[uncountable](symbol Mn)
 
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a chemical element. Manganese is a gray-white metal that breaks easily, used in making glass and steel.
See the Oxford Advanced Learner's Dictionary entry: manganese