| 释义 |
pyrethrum/paiˈri:θrəm/n. 1 any of several aromatic plants of the genus Tanacetum (daisy family), esp. T. coccineum 艾菊属(雏菊科)植物(尤指红花艾菊) 2 an insecticide made from the dried flowers of these plants, esp. Tanacetum cinerariifolium (尤指用除虫菊制成的)除虫菊杀虫剂 [Latin former genus name from Greek purethron ‘feverfew’] |