flu·​o·​ro·​quin·​o·​lone ˌflu̇r-ō-ˈkwi-nə-ˌlōn How to pronounce fluoroquinolone (audio)
: any of a group of fluorinated derivatives of quinolone that are used as antibacterial drugs

Example Sentences

Recent Examples on the Web Many of the infections are caused by E. coli, and much of this E. coli is already resistant to fluoroquinolones, the antibiotics commonly used to treat these types of infections. Diana Gitig, Ars Technica, 8 May 2023 The cause was long-term complications of a toxic reaction to the antibiotics known as fluoroquinolones, his wife, Mary Caldwell, wrote on Twitter. Alex Williams, New York Times, 15 Mar. 2023 While no cause of death was provided, Caldwell had struggled with health issues over the past six years, which Mary cited as a result of an adverse reaction to fluoroquinolone antibiotic. Daniel Kreps, Rolling Stone, 15 Mar. 2023 Floxing occurs in the body due to mitochondrial damage and oxidative stress caused by an adverse effect from a fluoroquinolone antibiotic. Ethan Shanfeld, Variety, 15 Mar. 2023 Note:To be specific, XDR-TB is resistant to the two first-line drugs, isoniazid and rifampin, used to treat TB initially, plus any fluoroquinolone and at least one of three injectable second-line drugs (i.e., amikacin, kanamycin, or capreomycin). Rebecca Kreston, Discover Magazine, 7 Mar. 2013 However, four years after his death, researchers reported that fluoroquinolones can cause aortic aneurysms and dissections. Joe Graedon, M.s., And Teresa Graedon, Houston Chronicle, 17 June 2018 These include the classes of drugs called fluoroquinolone and the beta-lactamases. NBC News, 17 Apr. 2018 At least one of them turned up with resistance to a class of antibiotics called fluoroquinolones, which contains ciprofloxacin among other common antibiotics. Beth Mole, Ars Technica, 10 Jan. 2018 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fluoroquinolone.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1984, in the meaning defined above

Time Traveler
The first known use of fluoroquinolone was in 1984

Dictionary Entries Near fluoroquinolone

Cite this Entry

“Fluoroquinolone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluoroquinolone. Accessed 1 Jun. 2023.

Medical Definition


flu·​o·​ro·​quin·​o·​lone -ˈkwin-ə-ˌlōn How to pronounce fluoroquinolone (audio)
: any of a group of fluorinated derivatives (such as ciprofloxacin and levofloxacin) of quinolone that are used as antibacterial drugs

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