ciprofloxacin
noun
cip·ro·flox·a·cin
ˌsi-prə-ˈfläk-sə-sən 
-prō-
: a broad-spectrum fluoroquinolone antibiotic C17H18FN3O3 that is often administered in the form of its hydrochloride C17H18FN3O3·HCl and is effective especially against gram-negative bacteria
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The United States maintains stockpiles of strategic medicines—the supply of ciprofloxacin is meant to cover 12 million people for 60 days—but emergency stockpiles are no answer for the chronic drug shortages already prevalent in the United States.
—
Thomas J. Bollyky, Foreign Affairs, 22 July 2025
Further tests found predicted resistance to antibiotics such as nalidixic acid and reduced susceptibility to ciprofloxacin.
—Matt Cannon, MSNBC Newsweek, 11 July 2025
Ampicillin, gentamicin, trimethoprim and ciprofloxacin are among the antibiotics to which bacteria have developed notable resistance worldwide.
—New Atlas, 21 Jan. 2025
Nearly 25 years ago, Americans discovered just how critical the antibiotic ciprofloxacin could be.
—Thomas J. Bollyky, Foreign Affairs, 22 July 2025
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Thomas J. Bollyky, Foreign Affairs, 22 July 2025
Further tests found predicted resistance to antibiotics such as nalidixic acid and reduced susceptibility to ciprofloxacin.
—Matt Cannon, MSNBC Newsweek, 11 July 2025
Ampicillin, gentamicin, trimethoprim and ciprofloxacin are among the antibiotics to which bacteria have developed notable resistance worldwide.
—New Atlas, 21 Jan. 2025
Nearly 25 years ago, Americans discovered just how critical the antibiotic ciprofloxacin could be.
—Thomas J. Bollyky, Foreign Affairs, 22 July 2025
See All Example Sentences for ciprofloxacin
Cite this Entry
“Ciprofloxacin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ciprofloxacin. Accessed 6 Aug. 2025.
Copy CitationMedical Definition
ciprofloxacin
noun
cip·ro·flox·a·cin
ˌsip-rə-ˈfläk-sə-sən, -rō-
: a fluoroquinolone C17H18FN3O3 that is often administered in the form of its hydrochloride C17H18FN3O3·HCl and is effective especially against gram-negative bacteria see cipro
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