valinomycin

noun
val·​in·​o·​my·​cin | \ ˌval-ə-nō-ˈmīs-ᵊn How to pronounce valinomycin (audio) \

Medical Definition of valinomycin

: an antibiotic C54H90N6O18 produced by a bacterium of the genus Streptomyces (S. fulvissimus)