fluoroquinolone
noun
flu·o·ro·quin·o·lone
ˌflu̇r-ō-ˈkwi-nə-ˌlōn 
: any of a group of fluorinated derivatives of quinolone that are used as antibacterial drugs
Examples of fluoroquinolone in a Sentence
Recent Examples on the Web
Use of some fluoroquinolone antibiotics, such as ciprofloxacin and levofloxacin, has also been linked with a higher risk of nightmares.
—
Stacey Colino, Time, 3 Nov. 2025
Certain drugs, like thyroid hormones, and drugs used to treat bacterial infections (antibiotics), such as tetracyclines and fluoroquinolones, may interfere with how collagen works in your body.
—Julie Marks, Verywell Health, 23 Apr. 2025
To cite just one example, treatment with the antibiotic fluoroquinolone has been found to result in a rapid and significant decrease in the diversity and richness of the gut microbiota.
—Juergen Eckhardt, Forbes, 24 Sep. 2024
More than 80 percent of infections are caused by E. coli, and in a 2022 report, the World Health Organization found that one in five UTI infections caused by E. coli showed reduced susceptibility to standard antibiotics like ampicillin, co-trimoxazole, and fluoroquinolones.
—Emily Mullin, WIRED, 10 Sep. 2024
Quinolones are a large family of broad-spectrum antibiotics, almost all of which are fluoroquinolones.
—New Atlas, 24 July 2024
By the 1990s, the CDC was forced to switch to a class of antibiotics called fluoroquinolones, including ciprofloxacin (Cipro).
—Beth Mole, Ars Technica, 28 Mar. 2024
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Stacey Colino, Time, 3 Nov. 2025
Certain drugs, like thyroid hormones, and drugs used to treat bacterial infections (antibiotics), such as tetracyclines and fluoroquinolones, may interfere with how collagen works in your body.
—Julie Marks, Verywell Health, 23 Apr. 2025
To cite just one example, treatment with the antibiotic fluoroquinolone has been found to result in a rapid and significant decrease in the diversity and richness of the gut microbiota.
—Juergen Eckhardt, Forbes, 24 Sep. 2024
More than 80 percent of infections are caused by E. coli, and in a 2022 report, the World Health Organization found that one in five UTI infections caused by E. coli showed reduced susceptibility to standard antibiotics like ampicillin, co-trimoxazole, and fluoroquinolones.
—Emily Mullin, WIRED, 10 Sep. 2024
Quinolones are a large family of broad-spectrum antibiotics, almost all of which are fluoroquinolones.
—New Atlas, 24 July 2024
By the 1990s, the CDC was forced to switch to a class of antibiotics called fluoroquinolones, including ciprofloxacin (Cipro).
—Beth Mole, Ars Technica, 28 Mar. 2024
Cite this Entry
“Fluoroquinolone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluoroquinolone. Accessed 8 Nov. 2025.
Copy CitationMedical Definition
fluoroquinolone
noun
flu·o·ro·quin·o·lone
-ˈkwin-ə-ˌlōn
: any of a group of fluorinated derivatives (such as ciprofloxacin and levofloxacin) of quinolone that are used as antibacterial drugs
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