: a mineral consisting of a heavy dark lustrous oxide of tantalum and usually other metals (such as iron or manganese)

Word History

First Known Use

1805, in the meaning defined above

Time Traveler
The first known use of tantalite was in 1805

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Cite this Entry

“Tantalite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tantalite. Accessed 23 Mar. 2025.

Kids Definition

tantalite

noun
: a mineral consisting of a heavy dark shiny oxide of tantalum and other metals
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