nigericin
/nʌɪˈdʒɪərɪsɪn/Biochemistry
noun
An antibiotic obtained from Streptomyces hygroscopicus that is an ionophore for monovalent cations and is used chiefly as an experimental tool.
Origin
1950s. Probably from the name of Nigeria, the country of origin of a soil sample containing a Streptomyces species, from which the antibiotic was isolated + -cin (in -mycin).