单词 | pyrethrum |
释义 | pyrethrum py.re.thrum AHD: [pº-r¶“thr…m, -rµth“r…m] D.J. [pa!6ri8Gr*m, -6reGr*m]K.K. [pa!6riGr*m, -6rWGr*m]n.(名词)1. Any of several Old World plants of the genusChrysanthemum, such as C. coccineum, cultivated for their showy flower heads. 菊花:一种东半球菊科 属植物,例如 红花除虫菊 ,因醒目的花朵而被种植 2. An insecticide made from the dried flower heads ofChrysanthemum cinerariifolium or C. coccineum. 除虫菊杀虫剂:由除虫菊 或 红花除虫菊 的干燥的花朵制成的杀虫药剂 语源:1. Latin [pellitory] 拉丁语 [墙草属植物] 2. from Greek purethron [feverfew] 源自 希腊语 purethron [小白菊] 3. from pur [fire (from its warming effect)] * see pyretic 源自 pur [火(不自它的加温效果)] *参见 pyretic |
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