antimony
noun
an·ti·mo·ny
ˈan-tə-ˌmō-nē 
1
: stibnite
2
: a trivalent and pentavalent metalloid element with atomic number 51 that commonly occurs in a brittle, metallic, silvery white crystalline form and that is used especially in alloys, semiconductors, and flame-retardant substances see Chemical Elements Table
Examples of antimony in a Sentence
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But experts and conservationists have raised doubts, pointing out the beads come from plants that were constructed in the 1990s, when post-consumer recycled plastic frequently contained heavy metals including lead, antimony and bromine, with persistent chemical residues.
—
Kara Fox, CNN Money, 29 Nov. 2025
Their key innovation lies in fine-tuning the structure of a compound made from lithium, iron, antimony, and oxygen.
—Neetika Walter, Interesting Engineering, 30 Oct. 2025
If that happens, the bulk of the 148 million pounds of antimony at the site would be prioritized during the initial years of operations, the company said.
—Kevin Fixler
september 20, Idaho Statesman, 20 Sep. 2025
The green light for the mine, backed by billionaire investor John Paulson, comes after Beijing last year blocked exports to the United States of antimony, a metal used to make bullets, solar panels and other goods.
—Ernest Scheyder, Reuters, 19 Sep. 2025
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Kara Fox, CNN Money, 29 Nov. 2025
Their key innovation lies in fine-tuning the structure of a compound made from lithium, iron, antimony, and oxygen.
—Neetika Walter, Interesting Engineering, 30 Oct. 2025
If that happens, the bulk of the 148 million pounds of antimony at the site would be prioritized during the initial years of operations, the company said.
—Kevin Fixler
september 20, Idaho Statesman, 20 Sep. 2025
The green light for the mine, backed by billionaire investor John Paulson, comes after Beijing last year blocked exports to the United States of antimony, a metal used to make bullets, solar panels and other goods.
—Ernest Scheyder, Reuters, 19 Sep. 2025
See All Example Sentences for antimony
Cite this Entry
“Antimony.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antimony. Accessed 18 Dec. 2025.
Copy CitationKids Definition
antimony
noun
an·ti·mo·ny
ˈant-ə-ˌmō-nē
: a metallic silvery white element that is used especially in alloys and medicine see element
Medical Definition
antimony
noun
an·ti·mo·ny
ˈant-ə-ˌmō-nē
plural antimonies
: a trivalent and pentavalent metalloid element that is commonly metallic silvery white, crystalline, and brittle and is used especially in alloys and semiconductors and in medicine as a constituent of various antiprotozoal agents (as tartar emetic)
—symbol Sb
see Chemical Elements Table
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