IVERMECTIN

[iver.mec.tin] n [perh. fr. di- + NL avermitilis (specific epithet of Streptomyces avermitilis, bacterium from which it is derived) + E -ect- (of unknown origin) + [1]-in] (1981): a drug mixture of two structurally similar semisynthetic lactones that is used in veterinary medicine as an anthelmintic, acaricide, and insecticide and in human medicine to treat onchocerciasis