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pyrethrum
 
Noun pyrethrum has 4 senses
  1. pyrethrum - made of dried flower heads of pyrethrum plants
    --1 is a kind of     insecticide, insect powder
  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
    --2 is a kind of herb, herbaceous plant
    --2 is a member of Tanacetum, genus Tanacetum
  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
    --3 is a kind of flower
    --3 is a member of Tanacetum, genus Tanacetum
  4. Pyrethrum, genus Pyrethrum - used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
    --4 is a kind of asterid dicot genus
    --4 is a member of
     Compositae, family Compositae, Asteraceae, family Asteraceae, aster family
pyrausta pyrausta nubilalis pyre pyrectic pyrene pyrenees pyrenees daisy pyrenomycetes pyrethrum pyretic pyrex pyrexia pyrge pyridine pyridium pyridon pyridonum

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