ALL meanings of penicillin
pen·i·cil·lin
P p - noun penicillin drug: antibiotic 1
- noun penicillin any of several antibiotics of low toxicity, produced naturally by molds of the genus Penicillium and also semisynthetically, having a bactericidal action on many susceptible Gram-positive or Gram-negative cocci and bacilli, some also being effective against certain spirochetes. 1
- uncountable noun penicillin Penicillin is a drug that kills bacteria and is used to treat infections. 0
- noun penicillin any of a group of antibiotics with powerful bactericidal action, used to treat many types of infections, including pneumonia, gonorrhoea, and infections caused by streptococci and staphylococci: originally obtained from the fungus Penicillium, esp P. notatum. Formula: R-C9H11N2O4S where R is one of several side chains 0
- noun penicillin any of a group of isomeric, antibiotic compounds with the general formula C9H11N2O4SR, obtained from the filtrates of certain molds (esp., Penicillium notatum and P. chrysogenum) or produced synthetically 0
- noun penicillin Penicillin is one of any of a group of antibiotics that kills bacteria and is used to treat many types of infections, including pneumonia and gonorrhea. 0