black manganese
The black oxide of manganese, MnO₂.
(slang, US, derogatory) Any poor town or out-of-the-way place.
A Japanese female given name from Japanese
plural of solenostele
地質学者は海底の二酸化マンガンの被膜を注意深く調べ、その組成がMnO₂であることを確認した。
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