noun
: a compound Mn 2 O 3 obtained as a black powder by heating manganese dioxide or manganous salts in air — called also manganese(III) oxide, manganic oxide
noun
: a compound Mn 2 O 3 obtained as a black powder by heating manganese dioxide or manganous salts in air — called also manganese(III) oxide, manganic oxide
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012