Definition of "penicillin" in İngilizce

noun

1. (pharmacology) Any of a group of narrow-spectrum antibiotics obtained from Penicillium molds or synthesized, that have a beta-lactam structure and are active against gram-positive bacteria and used in the treatment of various infections and diseases.

2. (mycology) A blue mold of the genus Penicillium that produces penicillin.