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manganese dioxide

 
Dictionary: manganese dioxide

n.
A black crystalline compound, MnO2, used as a depolarizer of dry-cell batteries and in textile dyeing.


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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more