ampicillin

== English == === Etymology === From am(ino)- +‎ p(en)icillin. === Pronunciation === IPA(key): /ˌæm.pɪˈsɪl.ɪn/ Rhymes: -ɪlɪn === Noun === ampicillin (countable and uncountable, plural ampicillins) (pharmacology) A semisynthetic form of penicillin C16H19N3O4S that is effective against gram-negative and gram-positive bacteria and is used to treat infections of the urinary, respiratory, and intestinal tracts. ==== Derived terms ==== ==== Translations ==== === References === “ampicillin”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022. “ampicillin”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.