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fluorine
noun
fluo·rine
ˈflu̇r-ˌēn
ˈflȯr-
: a nonmetallic gaseous chemical element of the halogen group with atomic number 9 that readily forms compounds with almost all other elements including some noble gases see Chemical Elements Table
Examples of fluorine in a Sentence
Recent Examples on the Web
Fluorides are compounds that contain both fluorine and another element, like a metal.
—Claire Bugos, Verywell Health, 16 Sep. 2024
This technology measures the carbon isotope ratios directly within the molecule, specifically where the carbon is bonded to the fluorine, without breaking the molecule apart.
—Alexandra Harrell, Sourcing Journal, 9 Aug. 2024
Because the mix of carbon isotopes bonding to each fluorine atom is unique to how the chemical was manufactured, this information can be used like a fingerprint to trace a chemical.
—Alexandra Harrell, Sourcing Journal, 9 Aug. 2024
Whereas both are composed of a two-ringed nitrogen-containing system, quinolones include a ketone, while fluoroquinolones include a fluorine atom.
—New Atlas, 24 July 2024
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Word History
Etymology
French, from New Latin fluor
First Known Use
1813, in the meaning defined above
Dictionary Entries Near fluorine
Cite this Entry
“Fluorine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluorine. Accessed 30 Nov. 2024.
Kids Definition
fluorine
noun
flu·o·rine
ˈflu̇(-ə)r-ˌēn,
-ən
: a nonmetallic element that is normally found alone as a pale yellowish flammable irritating poisonous gas having two atoms per molecule see element
Medical Definition
fluorine
noun
fluo·rine
ˈflu̇(-ə)r-ˌēn
-ən
: a nonmetallic monovalent halogen element that is normally a pale yellowish flammable irritating toxic gas
—symbol F
see Chemical Elements Table
More from Merriam-Webster on fluorine
Nglish: Translation of fluorine for Spanish Speakers
Britannica.com: Encyclopedia article about fluorine
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