amoxicillin

noun Pharmacology.

1. a semisynthetic penicillin, C18H19N3O5S, taken orally as a broad-spectrum antibiotic.

n.

1. A semisynthetic penicillin having an antibacterial spectrum of action similar to that of ampicillin.

1. An antibiotic derived from penicillin, having an antibacterial spectrum of action similar to that of ampicillin. Chemical formula: C16H19N3O5.