Other Definitions
pyrethrum (enc)
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Pyrethrum| Noun | 1. | pyrethrum - made of dried flower heads of pyrethrum plants | | | 2. | pyrethrum - white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemumgenus Tanacetum, Tanacetum - a large genus of plants resembling chrysanthemums; comprises some plants often included in other genera especially genus Chrysanthemum herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests | | | 3. | pyrethrum - 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 Chrysanthemumflower - a plant cultivated for its blooms or blossoms genus Tanacetum, Tanacetum - a large genus of plants resembling chrysanthemums; comprises some plants often included in other genera especially genus Chrysanthemum | | | 4. | Pyrethrum - used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetumasterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs | |
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