ciprofloxacin

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noun cip·ro·flox·a·cin \ˌsi-prə-ˈfläk-sə-sən, -prō-\

Definition of ciprofloxacin

: 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

Recent Examples of ciprofloxacin from the Web

Of the Enterococci, at least 90 percent of those found in each species were resistant to tetracycline; from 50 percent to 70 percent were resistant to erythromycin; and from 10 percent to 40 percent were resistant to ciprofloxacin and streptomycin —

— maryn mckenna, WIRED, "Farm antibiotics, human illness and what connects them. (It has legs.)", 28 Jan. 2011

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ciprofloxacin'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of ciprofloxacin

probably from International Scientific Vocabulary ci- (alteration of cycl-) + propyl + fluor- + ox- + az- + -mycin

First Known Use: 1983

Medical Dictionary

ciprofloxacin

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noun cip·ro·flox·a·cin \ˌsip-rə-ˈfläk-sə-sən, -rō-\

Medical Definition of ciprofloxacin

: 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