noun der·ris \ˈder-əs, ˈde-rəs\

Definition of derris

  1. 1 :  a preparation chiefly of ground derris roots used as an insecticide

  2. 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

Origin and Etymology of derris

New Latin, genus name, from Greek, skin, from derein to skin — more at tear

First Known Use: 1919

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