Definición de derris en inglés:

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Pronunciación: /ˈdɛrɪs/


1 [mass noun] An insecticide containing rotenone, made from the powdered roots of certain tropical plants.
Oraciones de ejemplo
  • This consisted of picking off the mature caterpillars and feeding them to the hens, and a liberal application of derris powder.
  • Jam laced with derris, camphor, citronella or pepper also makes an effective bait.
  • Second, spray the tree with derris, which is widely available, when roughly half the flower petals have fallen.
2A woody climbing plant of the pea family, which has tuberous roots from which the insecticide derris is obtained.
  • Genus Derris, family Leguminosae.
Oraciones de ejemplo
  • By the mid 1800s, the heads of chrysanthemum flowers were used to obtain pyrethrum, and rotenone was extracted from the derris plant.
  • The insecticidal properties of Derris roots were first discovered in 1848 and the plant was first used against the nutmeg caterpillar.
  • For rotenone is no post-war insect killer cooked up in a corporate lab, but a natural product, extracted from the derris plant, and a mainstay of organic farms and gardens.


Mid 19th century (in sense 2): modern Latin (genus name), from Greek, 'leather covering' (referring to the plant's leathery pods).

Palabras que riman con derris

Nerys, terrace

For editors and proofreaders

Saltos de línea: der¦ris

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