manganese

noun

man·​ga·​nese ˈmaŋ-gə-ˌnēz How to pronounce manganese (audio)
-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
manganesian adjective

Examples of manganese in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As per the press release, this system has a 90 percent recovery rate for critical metals such as lithium, graphite, nickel, cobalt, and manganese. Mrigakshi Dixit, Interesting Engineering, 9 June 2026 Plus, this functional dessert contains prebiotics (a type of fiber that feeds the beneficial microbes in the gut), as well as iron, magnesium, copper, and manganese. Amber J. Tresca, Verywell Health, 5 June 2026 Demand for nickel, cobalt and manganese could rise as nations invest in clean energy technologies, like batteries and other emerging industries. Harry Stevens, New York Times, 3 June 2026 African countries supply more than 80% of China’s chromium and manganese imports. Yinka Adegoke, semafor.com, 3 June 2026 See All Example Sentences for manganese

Word History

Etymology

French manganèse, from Italian manganese manganese dioxide

First Known Use

1783, in the meaning defined above

Time Traveler
The first known use of manganese was in 1783

Browse Nearby Words

Cite this Entry

“Manganese.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/manganese. Accessed 17 Jun. 2026.

Kids Definition

manganese

noun
man·​ga·​nese ˈmaŋ-gə-ˌnēz How to pronounce manganese (audio)
-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 How to pronounce manganese (audio)
: a grayish white usually hard and brittle metallic element that resembles iron but is not magnetic
symbol Mn
see Chemical Elements Table

More from Merriam-Webster on manganese

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster