cobaltite

noun

: a grayish to silver-white mineral consisting of a sulfur arsenide of cobalt also containing iron and sometimes nickel and used in pigments

Word History

Etymology

cobaltite, alteration of cobaltine, from French, from cobalt

First Known Use

1868, in the meaning defined above

Time Traveler
The first known use of cobaltite was in 1868

Browse Nearby Words

Cite this Entry

“Cobaltite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cobaltite. Accessed 24 Mar. 2025.

More from Merriam-Webster on cobaltite

Love words? Need even more definitions?

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