pyrethrum : Idioms & Phrases


anacyclus pyrethrum

  • noun a small Mediterranean plant containing a volatile oil once used to relieve toothache
    pellitory-of-Spain; pellitory.
WordNet

dalmatia pyrethrum

  • noun white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
    Dalmatia pyrethrum; Tanacetum cinerariifolium; Chrysanthemum cinerariifolium; pyrethrum.
WordNet

dalmatian pyrethrum

  • noun white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
    Dalmatia pyrethrum; Tanacetum cinerariifolium; Chrysanthemum cinerariifolium; pyrethrum.
WordNet

genus pyrethrum

  • noun used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
    Pyrethrum.
WordNet