norfloxacin

From nor- +‎ fl(uor)- +‎ -oxacin (“nalidixic acid derivative”).

• (Received Pronunciation) IPA^(key): /nɔːˈflɒk.səs.ɪn/
• (General American) IPA^(key): /nɔɹˈflɑk.səs.ɪn/

norfloxacin (uncountable)

1. (pharmacology) A synthetic fluoroquinolone antibiotic structurally related to nalidixic acid, which is used topically to treat conjunctivitis and orally for the treatment of bacterial infections of the urinary tract; 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic acid, C₁₆H₁₈FN₃O₃.

• -floxacin (“antibacterial”)

• “norfloxacin”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “norfloxacin”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.