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: a metalloid chemical element that is found in nature only in combination and that is used especially in borosilicate glass and detergents see Chemical Elements Table
Examples of boron in a Sentence
Recent Examples on the Web
The researchers began by testing a glass formed from a mixture of boron, sulfur, and lithium (B2S3 and Li2S).
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Ashley Belanger, Ars Technica, 17 Jan. 2025
Mining giant Rio Tinto is experimenting with ways to extract lithium that exists in boron mining waste, and a Canadian startup is working to recover rare earths from tin-mine tailings.
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Vince Beiser, WIRED, 30 Nov. 2024
If needed, information on applying boron as a nutrient can be obtained by doing a search for boron deficiency in palms.
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Tom MacCubbin, Orlando Sentinel, 30 Nov. 2024
Built around a large neodymium iron boron magnet, the 40mm diameter drivers have a wide dynamic range and nimble transient response.
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Mark Sparrow, Forbes, 4 Nov. 2024
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Word History
Etymology
borax + -on (as in carbon)
First Known Use
1812, in the meaning defined above
Phrases Containing boron
Dictionary Entries Near boron
Cite this Entry
“Boron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/boron. Accessed 6 Feb. 2025.
Kids Definition
boron
noun
bo·ron
ˈbō(ə)r-ˌän
ˈbȯ(ə)r-
: a metalloid element found in nature only in combination (as in borax) see element
Medical Definition
boron
noun
bo·ron
ˈbō(ə)r-ˌän, ˈbȯ(ə)r-
: a trivalent metalloid element found in nature only in combination and used in metallurgy and in composite structural materials
—symbol B
see Chemical Elements Table
More from Merriam-Webster on boron
Nglish: Translation of boron for Spanish Speakers
Britannica.com: Encyclopedia article about boron
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