pyrethrum
1. made of dried flower heads of pyrethrum plants • Hypernyms: insecticide, insect powder 2. 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 • Syn: painted daisy, Tanacetum coccineum, Chrysanthemum coccineum • Hypernyms: flower • Member Holonyms: Tanacetum, genus Tanacetum 3. white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum • Syn: Dalmatian pyrethrum, Dalmatia pyrethrum, Tanacetum cinerariifolium, Chrysanthemum cinerariifolium • Hypernyms: herb, herbaceous plant • Member Holonyms: Tanacetum, genus Tanacetum
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