novobiocin
/ˌnəʊvə(ʊ)ˈbʌɪəsɪn/Pharmacology
noun
A weakly acidic tetracyclic phenol, C31H36N2O11, that is produced by certain actinomycetes of the genus Streptomyces and is used in treating infections caused by bacteria resistant to less toxic antibiotics.
Origin
1950s; earliest use found in Antibiotics & Chemotherapy. Origin uncertain; probably from novo- + bio- + -cin (in -mycin).