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Noun:
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made of dried flower heads of pyrethrum plants
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white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
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spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers; source of an insecticide; sometimes placed in genus Chrysanthemum
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used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
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用作名詞 (n.)
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This article draws up the pyrethrum ester insecticide.
本品是擬除蟲菊酯類滅蟲劑。
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超過東西獨代創作實踐,受著書權養護,侵權商標必究
海詞辭典,二十七年茶葉品牌