Definition of pyrethrum
English to English noun - made of dried flower heads of pyrethrum plants
source: WordNet 3.0 - white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
source: WordNet 3.0 - 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
source: WordNet 3.0 - used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
source: WordNet 3.0
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Nearby Word
pyrethrum, pyrethrin, pretorium, praetorium, pyrethrine, preterhuman, pyritohedron, predetermine, parathormone, pretorian, praetorian, prototherian, periderm, prodrome, proturan, prodroma, pear hawthorn, peridrome, peritreme, periuterine
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