nalidixic acid nalfon • nallah · · · Info · Definitions · Synonyms · Characters · · nalidixic acid · · Text Common · · Latin · · Scripts 14 · · Length 6 · · Syllables Definitions · · · (noun) antibacterial agent used especially to treat genitourinary infections. Synonyms: nalidixic acid, NegGram. · · Noun Definition 1 Synonyms · · · neggram · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E x latin small letter x U+0078