manganese dioxide

noun

Definition of manganese dioxide

: a dark insoluble compound MnO2 used especially as an oxidizing agent, as a depolarizer of dry cells, and in making glass and ceramics

Examples of manganese dioxide in a Sentence

Recent Examples on the Web In the future, the photographer plans to test out more exotic thermites like bismuth trioxide and manganese dioxide. Wired, "Distant Galaxies? The Death Star? Nope, These Are Explosions," 31 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'manganese dioxide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of manganese dioxide

1866, in the meaning defined above

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The first known use of manganese dioxide was in 1866

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Cite this Entry

“Manganese dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/manganese%20dioxide. Accessed 25 Sep. 2020.

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