amoxicillin

n. semisynthetic drug that is similar to penicillin and is used as an antibiotic (Medicine)

Amoxicillin (INN) or amoxycillin (former BAN) is a moderate-spectrum β-lactam antibiotic used to treat bacterial infections caused by susceptible microorganisms. It is usually the drug of choice within the class because it is better absorbed, following oral administration, than other beta-lactam antibiotics. Amoxicillin is susceptible to degradation by β-lactamase-producing bacteria, and so may be given with clavulanic acid to decrease its susceptibility (see below). It was developed by Beecham in 1972 and is currently marketed by GlaxoSmithKline (the inheritor company) under the original trade name Amoxil.
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Amoxicillin /amox·i·cil·lin/ a semisynthetic derivative of ampicillin effective against a broad spectrum of gram-positive and gram-negative bacteria. [more]Amoxicillin - Community and Resources

Noun
1. an antibiotic; a semisynthetic oral penicillin (trade names Amoxil and Larotid and Polymox and Trimox and Augmentin) used to treat bacterial infections
(synonym) Amoxil, Larotid, Polymox, Trimox, Augmentin
(hypernym) penicillin

An antibiotic drug used to treat infection. It belongs to the family of drugs called penicillins or penicillin derivatives.