manganese
noun
man·ga·nese
ˈmaŋ-gə-ˌnēz 
-ˌnēs
: a grayish-white usually hard and brittle metallic element that resembles iron but is not magnetic and is used especially in alloys, batteries, and plant fertilizers see Chemical Elements Table
Examples of manganese in a Sentence
Recent Examples on the Web
Electronic waste from phones, laptops and more contains high concentrations of valuable metals such as lithium, cobalt, nickel, manganese, copper, gold and silver.
—
Kristen Edgreen Kaufman, Forbes.com, 27 Jan. 2026
As for protection, Jacquet’s plans propose that the hull be made of a cast-steel or manganese-alloy mixture.
—Christopher McFadden, Interesting Engineering, 26 Jan. 2026
Early studies suggest that recovering rare earth elements using technologies being developed today could be profitable, particularly when the projects also recover additional critical materials, such as cobalt and manganese, which are used in industrial processes and batteries.
—Alan Collins, The Conversation, 21 Jan. 2026
Today, the average, general purpose alkaline batteries (such as the AAA, AA, C, and D batteries that go in your remote control or child’s toy) are made of steel and a combination of zinc, manganese, potassium, graphite, paper, and plastic—all of which, in theory, are recyclable.
—Katherine Gallagher, Treehugger, 20 Jan. 2026
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Kristen Edgreen Kaufman, Forbes.com, 27 Jan. 2026
As for protection, Jacquet’s plans propose that the hull be made of a cast-steel or manganese-alloy mixture.
—Christopher McFadden, Interesting Engineering, 26 Jan. 2026
Early studies suggest that recovering rare earth elements using technologies being developed today could be profitable, particularly when the projects also recover additional critical materials, such as cobalt and manganese, which are used in industrial processes and batteries.
—Alan Collins, The Conversation, 21 Jan. 2026
Today, the average, general purpose alkaline batteries (such as the AAA, AA, C, and D batteries that go in your remote control or child’s toy) are made of steel and a combination of zinc, manganese, potassium, graphite, paper, and plastic—all of which, in theory, are recyclable.
—Katherine Gallagher, Treehugger, 20 Jan. 2026
See All Example Sentences for manganese
Cite this Entry
“Manganese.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/manganese. Accessed 31 Jan. 2026.
Copy CitationKids Definition
manganese
noun
man·ga·nese
ˈmaŋ-gə-ˌnēz
-ˌnēs
: a grayish white usually hard and brittle metallic element that resembles iron but is not magnetic see element
Medical Definition
manganese
noun
man·ga·nese
ˈmaŋ-gə-ˌnēz, -ˌnēs
: a grayish white usually hard and brittle metallic element that resembles iron but is not magnetic
—symbol Mn
see Chemical Elements Table
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