pyrolusite

noun

py·ro·lu·site ˌpī-rō-ˈlü-ˌsīt

: a soft black or steel-gray mineral of metallic luster consisting of manganese dioxide that is the most important ore of manganese

Word History

Etymology

German Pyrolusit, from Greek pyr- + lousis washing, from louein to wash — more at lye

First Known Use

1828, in the meaning defined above

Time Traveler

The first known use of pyrolusite was in 1828

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Cite this Entry

Style

“Pyrolusite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pyrolusite. Accessed 27 Mar. 2023.

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Kids Definition

pyrolusite

noun

py·ro·lu·site ˌpī-rō-ˈlü-ˌsīt

: a mineral consisting of manganese dioxide that is of an iron-black or dark steel-gray color and metallic luster, is usually soft, and is the most important ore of manganese

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