noun Date: 1866 a dark insoluble compound MnO 2 used especially as an oxidizing agent, as a depolarizer of dry cells, and in making glass and ceramics
MANGANESE DIOXIDE
Meaning of MANGANESE DIOXIDE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012