Definition of Pyrethrum

Noun: pyrethrum  pI'ree-thrum

  1. Made of dried flower heads of pyrethrum plants
     
  2. White-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
    - Dalmatian pyrethrum, Dalmatia pyrethrum, Tanacetum cinerariifolium, Chrysanthemum cinerariifolium
     
  3. 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
    - painted daisy, Tanacetum coccineum, Chrysanthemum coccineum
Noun: Pyrethrum
  1. Used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
    - genus Pyrethrum

See also:
pyrethroids
pyrethrums

Anagrams containing the word pyrethrum

pmtyurerh mpyrethru umpyrethr rumpyreth hrumpyret thrumpyre ethrumpyr rethrumpy yrethrump