plural -s
often capitalized M&G
: a mineral Mn5(AsO3)2SiO3(OH)2 consisting of a basic silicate and arsenite of manganese that is found at Sterling Hill, New Jersey

Word History


J.J. McGovern †1915 American mine foreman + English -ite

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Dictionary Entries Near mcgovernite

Cite this Entry

“Mcgovernite.” Dictionary, Merriam-Webster, Accessed 21 Jul. 2024.

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