Definitions for pyrethrum
Overview of noun pyrethrum
The noun pyrethrum has 4 senses? (no senses from tagged texts)
1. pyrethrum
(made of dried flower heads of pyrethrum plants)
2. pyrethrum, Dalmatian pyrethrum, Dalmatia pyrethrum, Tanacetum cinerariifolium, Chrysanthemum cinerariifolium
(white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum)
3. painted daisy, pyrethrum, Tanacetum coccineum, Chrysanthemum coccineum
(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)
4. Pyrethrum, genus Pyrethrum
(used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum)
