penicillin

n. antibiotic agent extracted from mold, type of antibiotic medication

For the Japanese rock band, see Penicillin (band). Penicillin (sometimes abbreviated PCN) is a group of beta-lactam antibiotics used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms. “Penicillin” is also the informal name of a specific member of the penicillin group Penam Skeleton, which has the molecular formula R-C9H11N2O4S, where R is a variable side chain.
See more at Wikipedia.org...

Penicillin /pen·i·cil·lin/ any of a large group of natural or semisynthetic antibacterial antibiotics derived directly or indirectly from strains of [more]Penicillin - Community and Resources

Noun
1. any of various antibiotics obtained from penicillium molds (or produced synthetically) and used in the treatment of various infections and diseases
(hypernym) antibiotic, antibiotic drug
(hyponym) amoxicillin, Amoxil, Larotid, Polymox, Trimox, Augmentin

n. penicillin, antibiotic agent extracted from mold; type of antibiotic medication