Definition from Wiktionary, the free dictionary
- (pharmacology) Any of a group of narrow-spectrum antibiotics obtained from Penicillium molds or synthesized; they have a beta-lactam structure; most are active against gram-positive bacteria and used in the treatment of various infections and diseases.
- benzathine penicillin
- benzylpenicillin, penicillin G
- penicillinic acid
- phenoxymethylpenicillin, penicillin V
- procaine penicillin