py.re.thrum
pyrethrum的音标和读音:
DJ音标发音: [paiˈri:θrəm, -ˈreθrəm]
KK音标发音: [paɪˈriθrəm, -ˈrɛθrəm]
pyrethrum的词性:
n.(名词)
1. Any of several Old World plants of the genus Chrysanthemum, 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 ,因其粉的头状花序而被种植
2. An insecticide made from the dried flower heads of Chrysanthemum cinerariifolium or C. coccineum.
干菊头杀虫剂:由除虫菊 或 红花除虫菊 的干燥的花头制成的一种杀虫药剂
pyrethrum的词源:
3. Latin [pellitory]
拉丁语 [墙草属植物]
4. from Greek purethron [feverfew]
源自 希腊语 purethron [小白菊]
5. from pur [fire (from its warming effect)] * see pyretic
源自 pur [火(不自它的加温效果)] *参见 pyretic