derivative of nitrofuran used as an antibacterial medicine (trade name Macrodantin) effective against a broad range of Gram-positive and Gram-negative bacteria; used to treat infections of the urinary tract • Syn: Macrodantin • Usage Domain: trade name (for: Macrodantin) • Hypernyms: antibacterial, antibacterial drug, bactericide • Substance Meronyms: nitrofuran