oligomycin

noun

oli·​go·​my·​cin ˌäl-i-gō-ˈmīs-ᵊn  ˌō-li- 

: any of several antibiotic substances produced by an actinomycete of the genus Streptomyces (S. diastatochromogenes or a closely related species) and used especially in biochemical research to inhibit oxidative phosphorylation