noun
: a crystalline amphoteric compound Mn(OH) 2 that is found in nature as pyrochroite, that is obtained synthetically as a white precipitate by adding alkali to a solution of a manganous salt, and that rapidly turns brown in air by oxidation
noun
: a crystalline amphoteric compound Mn(OH) 2 that is found in nature as pyrochroite, that is obtained synthetically as a white precipitate by adding alkali to a solution of a manganous salt, and that rapidly turns brown in air by oxidation
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012