nystatin

n. [ From NY state + -in, due to its discovery in New York State. ] An antifungal antibiotic, extracted from fermentation broths of the soil actinomycete Streptomyces noursei and other actinomycetes; called also fungicidin. It is a polyene macrolide antibiotic, and consists of several related components. Component nystatin A1 has formula C47H75NO17. [ WordNet 1.5 ]