# ciprofloxacin

> English word · Noun · IPA /ˌsɪp.ɹəˈflɑk.səs.ɪn/ · frequency rank #84,102

## Definitions
1. 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.

## Etymology
From cy(clo)pro(pyl) + -floxacin (“nalidixic acid derivative”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/ciprofloxacin