英语词汇“pyrethrum”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pyrethrum
释义	pyrethrum /puy ree"threuhm, -reth"reuhm/, n. 1. any of several chrysanthemums, as Chrysanthemum coccineum, having finely divided leaves and showy red, pink, lilac, or white flowers, cultivated as an ornamental. 2. any of several chrysanthemums, as C. cinerariifolium, or C. coccineum, cultivated as a source of insecticides. 3. Pharm. the dried flower heads of these plants, used chiefly as an insecticide and sometimes in medicine for certain skin disorders. [1555-65; < L: pellitory < Gk pýrethron, akin to pyretós fever; cf. PELLITORY]
随便看	western lowland gorilla. western meadowlark. westernmost western mountain ash Western Ocean western omelet western red cedar Western Reserve Western Roman Empire Western saddle Western Sahara Western Samoa western sandwich Western Slavs. Western Springs western tanager Western Thrace. Western Wall western wool. western yellow pine. Westerville Westfalen West Fargo Westfield West Flanders

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