derris
derris[ˈdɛrɪs]noun- [mass noun]an insecticide made from the powdered roots of certain tropical plants, containing rotenone
鱼藤酮杀虫剂
- a woody climbing plant of the pea family, which bears leathery pods and has tuberous roots from which this insecticide is obtained
鱼藤
- Genus Derris, family Leguminosae
鱼藤属,豆科
语源- mid 19th cent. (in sense 2): modern Latin (genus name), from Greek, leather covering' (referring to the plant's leathery pods)
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