Pyrethrum

[pai'ri:θrәm]

解释:

(noun.) used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum.

(noun.) white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum.

(noun.) made of dried flower heads of pyrethrum plants.

编辑:纳内特--From WordNet

解释:

n. a genus of plants containing the fever-few or golden-feather so much used in gardens as a bordering.

多米尼克整理