streptothricin

strep·to·thri·cin

noun \ˌstrep-tō-ˈthrīs-^ən, -ˈthris-\

Definition of STREPTOTHRICIN

: a basic antibiotic C₁₉H₃₄N₈O₈ that is produced by a soil actinomycete of the genus Streptomyces (S. lavendulae) and is active especially against bacteria; also : any of several related antibiotics