单词 | derris |
释义 | derrisnoun der·ris ˈder-əs ˈde-rəs 1 : a preparation chiefly of ground derris roots used as an insecticide 2 : any of a large genus (Derris) of tropical Eurasian shrubs and woody vines of the legume family including sources of poisons and especially commercial sources of rotenone |
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