Ampicillin Definition

ămpĭ-sĭlĭn
noun
A semisynthetic penicillin that has a broader antibacterial spectrum of action than that of penicillin G, is effective against gram-negative and gram-positive bacteria, and is used to treat infections of the intestinal, urinary, and respiratory tracts.
American Heritage
A synthetic antibiotic, C16H19N3O4S, derived from penicillin, having resistance to acids so that it can be taken orally to fight a wide range of bacterial infections.
Webster's New World
A broad-spectrum semisynthetic penicillin, C16 H19 N3 O4 S, that is used, often in the form of its sodium salt, to treat infections of the intestinal, urinary, and respiratory tracts.
American Heritage Medicine

(pharmacology) A broad-spectrum antibiotic having a beta-lactam structure.

Wiktionary
Synonyms:
  • SK-Ampicillin
  • Polycillin
  • Principen

Origin of Ampicillin

  • Blend of amino– penicillin

    From American Heritage Dictionary of the English Language, 5th Edition

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ampicillin