piperacillin piperaceous • pipe rack · · · Info · Definitions · Synonyms · Characters · · piperacillin · · Text Latin · · Script 12 · · Length 5 · · Syllables Definitions · · · (noun) a synthetic type of penicillin antibiotic (trade name Pipracil) used for moderate to severe infections. Synonyms: Pipracil. · · Noun Definition 1 Synonyms · · · pipracil · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072