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pyrethrin |
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pyrethrin /py·reth·rin/ (pi-reth´rin) either of two esters, p. I and p. II, found in the flowers of certain species of Chrysanthemum; used as an insecticide and as a topical pediculicide. pyrethrin Public health A topical insecticide used to manage head lice. See Head lice. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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